National Library of Energy BETA

Sample records for minimum lead time

  1. Time Crystals from Minimum Time Uncertainty

    E-Print Network [OSTI]

    Mir Faizal; Mohammed M. Khalil; Saurya Das

    2014-12-29

    Motivated by the Generalized Uncertainty Principle, covariance, and a minimum measurable time, we propose a deformation of the Heisenberg algebra, and show that this leads to corrections to all quantum mechanical systems. We also demonstrate that such a deformation implies a discrete spectrum for time. In other words, time behaves like a crystal.

  2. Minimum Time/Minimum Fuel Control of an Axisymmetric Rigid Body 

    E-Print Network [OSTI]

    Torres, Jonathan Farina

    2014-05-19

    Many times it is necessary to reorient an aerial vehicle during flight in a minimum time or minimum fuel fashion. This thesis will present a minimum time/fuel control solution to reorienting an axisymmetric rigid body using ...

  3. Modeling an Application's Theoretical Minimum and Average Transactional Response Times

    SciTech Connect (OSTI)

    Paiz, Mary Rose

    2015-04-01

    The theoretical minimum transactional response time of an application serves as a ba- sis for the expected response time. The lower threshold for the minimum response time represents the minimum amount of time that the application should take to complete a transaction. Knowing the lower threshold is beneficial in detecting anomalies that are re- sults of unsuccessful transactions. On the converse, when an application's response time falls above an upper threshold, there is likely an anomaly in the application that is causing unusual performance issues in the transaction. This report explains how the non-stationary Generalized Extreme Value distribution is used to estimate the lower threshold of an ap- plication's daily minimum transactional response time. It also explains how the seasonal Autoregressive Integrated Moving Average time series model is used to estimate the upper threshold for an application's average transactional response time.

  4. Assembly lead time reduction in a semiconductor capital equipment plant through constraint based scheduling

    E-Print Network [OSTI]

    Sedore, Blake William Clark

    2014-01-01

    The assembly protocols for a semiconductor capital equipment machine were analyzed for potential lead time reduction. The objective of this study was to determine the minimum assembly lead time for the machine based on the ...

  5. Sampling-Based Direct Trajectory Generation Using the Minimum Time Cost Function

    E-Print Network [OSTI]

    Collins, Emmanuel

    Sampling-Based Direct Trajectory Generation Using the Minimum Time Cost Function Oscar Chuy for computationally efficient, direct trajectory generation using sampling with the minimum time cost function, where" (i.e, a rigorous lower bound on the chosen cost) based on the solution of a minimum time control

  6. Auroral Ionosphere During Solar Minimum in Very High Time Resolution , T. Turunen1

    E-Print Network [OSTI]

    Ulich, Thomas

    Auroral Ionosphere During Solar Minimum in Very High Time Resolution Th.Ulich1 , T. Turunen1 , E modes of typically one sounding per 15 minutes. Due to the ever-decreasing costs of digital storage deep solar activity minimum provided us with the very rare opportunity to observe the ionosphere in its

  7. Demand and Production Management with Uniform Guaranteed Lead Time

    E-Print Network [OSTI]

    Swaminathan, Jayashankar M.

    Demand and Production Management with Uniform Guaranteed Lead Time Uday S. Rao Jayashankar M Recently, innovation-oriented firms have been competing along dimensions other than price - lead time being one such dimension. Increasingly, customers are favoring lead time guarantees as a means to hedge

  8. Timing discriminator using leading-edge extrapolation

    DOE Patents [OSTI]

    Gottschalk, B.

    1981-07-30

    A discriminator circuit to recover timing information from slow-rising pulses by means of an output trailing edge, a fixed time after the starting corner of the input pulse, which is nearly independent of risetime and threshold setting is described. This apparatus comprises means for comparing pulses with a threshold voltage; a capacitor to be charged at a certain rate when the input signal is one-third threshold voltage, and at a lower rate when the input signal is two-thirds threshold voltage; current-generating means for charging the capacitor; means for comparing voltage capacitor with a bias voltage; a flip-flop to be set when the input pulse reaches threshold voltage and reset when capacitor voltage reaches the bias voltage; and a clamping means for discharging the capacitor when the input signal returns below one-third threshold voltage.

  9. The impact of lead time on truckload transportation rates

    E-Print Network [OSTI]

    Caldwell, Erik R. (Erik Russell)

    2008-01-01

    The objective of this thesis was to analyze truckload shipment transactions in order to determine if rates are impacted by tender lead time, which is the amount of time between when a carrier is offered a load to when the ...

  10. A methodology for predicting minimum travel paths using real-time traffic network data 

    E-Print Network [OSTI]

    Liu, Chang

    1991-01-01

    A METHODOLOGY FOR PREDICTING MINIMUM TRAVEL PATHS USING REAL-TIME TRAFFIC NETWORK DATA A Thesis by Chang Liu Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillrnent of the requirements for the degree... operations. ACKNOWLEDGEMENTS I would like to express special thanks to Dr. Daniel B. Fambro for his guidance, assistance, and patience from the initial stage of my graduate career at Texas A&M University through the final stage of the research documented...

  11. Minimum time control of a pair of two-level quantum systems with opposite drifts

    E-Print Network [OSTI]

    Raffaele Romano; Domenico D'Alessandro

    2015-04-27

    In this paper we solve two equivalent time optimal control problems. On one hand, we design the control field to implement in minimum time the SWAP (or equivalent) operator on a two-level system, assuming that it interacts with an additional, uncontrollable, two-level system. On the other hand, we synthesize the SWAP operator simultaneously, in minimum time, on a pair of two-level systems subject to opposite drifts. We assume that it is possible to perform three independent control actions, and that the total control strength is bounded. These controls either affect the dynamics of the target system, under the first perspective, or, simultaneously, the dynamics of both systems, in the second view. We obtain our results by using techniques of geometric control theory on Lie groups. In particular, we apply the Pontryagin Maximum Principle, and provide a complete characterization of singular and non-singular extremals. Our analysis shows that the problem can be formulated as the motion of a material point in a central force, a well known system in classical mechanics. Although we focus on obtaining the SWAP operator, many of the ideas and techniques developed in this work apply to the time optimal implementation of an arbitrary unitary operator.

  12. Apparatus and method for closed-loop control of reactor power in minimum time

    DOE Patents [OSTI]

    Bernard, Jr., John A. (72 Paul Revere Rd., Needham Heights, MA 02194)

    1988-11-01

    Closed-loop control law for altering the power level of nuclear reactors in a safe manner and without overshoot and in minimum time. Apparatus is provided for moving a fast-acting control element such as a control rod or a control drum for altering the nuclear reactor power level. A computer computes at short time intervals either the function: .rho.=(.beta.-.rho.).omega.-.lambda..sub.e '.rho.-.SIGMA..beta..sub.i (.lambda..sub.i -.lambda..sub.e ')+l* .omega.+l* [.omega..sup.2 +.lambda..sub.e '.omega.] or the function: .rho.=(.beta.-.rho.).omega.-.lambda..sub.e .rho.-(.lambda..sub.e /.lambda..sub.e)(.beta.-.rho.)+l* .omega.+l* [.omega..sup.2 +.lambda..sub.e .omega.-(.lambda..sub.e /.lambda..sub.e).omega.] These functions each specify the rate of change of reactivity that is necessary to achieve a specified rate of change of reactor power. The direction and speed of motion of the control element is altered so as to provide the rate of reactivity change calculated using either or both of these functions thereby resulting in the attainment of a new power level without overshoot and in minimum time. These functions are computed at intervals of approximately 0.01-1.0 seconds depending on the specific application.

  13. The effects of part commonality on product development lead time

    E-Print Network [OSTI]

    Svensson, Nicholas, 1965-

    2005-01-01

    Nortel Networks, a leading global supplier of telecommunications equipment, is engaged in an increasingly competitive global market place. Within this market, Nortel Networks is positioning itself as the leader of global ...

  14. Lead

    Broader source: Energy.gov (indexed) [DOE]

    topic Lead 8:00 AM 8:15 AM Welcome and Webinar Rules Maloy 8:15 AM 8:30 AM NE Materials Introduction Lesica 8:30 AM 9:00 AM Advanced Reactor Concepts Sham 9:00 AM 9:30 AM SMR...

  15. Estimating the Lead Time Distribution of Priority Lots in a Semiconductor Factory \\Lambda

    E-Print Network [OSTI]

    Gershwin, Stanley B.

    Estimating the Lead Time Distribution of Priority Lots in a Semiconductor Factory \\Lambda Asbjoern M. Bonvik y July 10, 1995 Abstract We consider the lead time of priority lots in a semiconductor fac for finding the lead time distribution is described. We describe a method of creating synthetic samples

  16. Real Time Corrosion Monitoring in Lead and Lead-Bismuth Systems

    SciTech Connect (OSTI)

    James F. Stubbins; Alan Bolind; Ziang Chen

    2010-02-25

    The objective of this research program is to develop a real-time, in situ corrosion monitoring technique for flowing liquid Pb and eutectic PbBi (LBE) systems in a temperature range of 400 to 650 C. These conditions are relevant to future liquid metal cooled fast reactor operating parameters. THis program was aligned with the Gen IV Reactor initiative to develp technologies to support the design and opertion of a Pb or LBE-cooled fast reactor. The ability to monitor corrosion for protection of structural components is a high priority issue for the safe and prolonged operation of advanced liquid metal fast reactor systems. In those systems, protective oxide layers are intentionally formed and maintained to limit corrosion rates during operation. This program developed a real time, in situ corrosion monitoring tecnique using impedance spectroscopy (IS) technology.

  17. Efficient Inventory Optimization of Multi Product, Multiple Suppliers with Lead Time using PSO

    E-Print Network [OSTI]

    Narmadha, S; Sathish, G

    2010-01-01

    With information revolution, increased globalization and competition, supply chain has become longer and more complicated than ever before. These developments bring supply chain management to the forefront of the managements attention. Inventories are very important in a supply chain. The total investment in inventories is enormous, and the management of inventory is crucial to avoid shortages or delivery delays for the customers and serious drain on a companys financial resources. The supply chain cost increases because of the influence of lead times for supplying the stocks as well as the raw materials. Practically, the lead times will not be same through out all the periods. Maintaining abundant stocks in order to avoid the impact of high lead time increases the holding cost. Similarly, maintaining fewer stocks because of ballpark lead time may lead to shortage of stocks. This also happens in the case of lead time involved in supplying raw materials. A better optimization methodology that utilizes the Part...

  18. Short communication Real-time estimation of lead-acid battery parameters: A dynamic

    E-Print Network [OSTI]

    Ray, Asok

    squares) have been applied to lead-acid [1] and lithium-ion [2] batteries. This paper proposes a dynamicShort communication Real-time estimation of lead-acid battery parameters: A dynamic data of State of charge (SOC) and State of health (SOH) in lead-acid batteries. Algorithm development based

  19. Strategy for reducing the length and variability of aircraft lead time

    E-Print Network [OSTI]

    Bielat, Brendon (Brendon Michael)

    2010-01-01

    Helicopter manufacturers typically build each aircraft to order, and the lead time for make or buy parts and assemblies can be several months or more. The manufacturers generally have a backlog of orders at any given time, ...

  20. Assembly lead time reduction in a semiconductor capital equipment plant through improved material kitting

    E-Print Network [OSTI]

    Jain, Sonam

    2014-01-01

    Manufacturing operations were studied at a semiconductor capital equipment manufacturing plant, with an aim to reduce the production time of their longest lead time module. Preliminary analysis was done by observing the ...

  1. Logistics Network Design with Differentiated Delivery Lead-Time: Benefits and Insights

    E-Print Network [OSTI]

    Cheong, Michelle L.F.

    Most logistics network design models assume exogenous customer demand that is independent of the service time or level. This paper examines the benefits of segmenting demand according to lead-time sensitivity of customers. ...

  2. Estimating the Lead Time Distribution of Priority Lots in a Semiconductor Factory

    E-Print Network [OSTI]

    Bonvik, Asbjoern M.

    We consider the lead time of priority lots in a semiconductor factory. The main cause of delays is waiting for repairs of failed machines, and the failures are mainly caused by power disturbances. This can be modeled as ...

  3. Production lead time reduction in a semiconductor capital equipment manufacturing plant through optimized testing protocols

    E-Print Network [OSTI]

    Bhadauria, Anubha Singh

    2014-01-01

    Processes at a semiconductor equipment manufacturing facility were studied with the goal to reduce the production lead time. Based on the principles of lean manufacturing, DMAIC methodology was used to guide the process. ...

  4. Time series analysis of the lead-lag relationship of freight futures and spot market prices

    E-Print Network [OSTI]

    Gavriilidis, Nikolaos

    2008-01-01

    This thesis analyzes the relationship between the physical and paper shipping markets. The main objective is to find if one market leads the other by a specific time period so that market players can take advantage from ...

  5. Control of WIP and reduction of lead time in a food packaging company

    E-Print Network [OSTI]

    Chim, Kevan Yong Cai

    2010-01-01

    High inventory holding costs, strain on warehouse capacity and the competition of lead time are concerns of a food packaging manufacturer. In this work, causes of high WIP were identified and three approaches were developed ...

  6. Quantum Brachistochrone Curves as Geodesics: Obtaining Accurate Minimum-Time Protocols for the Control of Quantum Systems

    E-Print Network [OSTI]

    Wang, Xiaoting

    Most methods of optimal control cannot obtain accurate time-optimal protocols. The quantum brachistochrone equation is an exception, and has the potential to provide accurate time-optimal protocols for a wide range of ...

  7. Reoptimization of the Minimum Total Flow-Time Scheduling We consider reoptimization problems arising in dynamic scheduling environments, such

    E-Print Network [OSTI]

    Tamir, Tami

    of the classical scheduling problem of minimizing the total flow-time on identical machines (denoted in standard and virtual machine managers. Due to changes in the environment (out-of-order or new resources, modified jobs their current machine to a different one. Migrations are associated with a cost ­ due to relocation overhead

  8. Technical Note: Survivor treatment selection bias and all that The article about Oscar winners living longer mentioned lead time bias and sur-

    E-Print Network [OSTI]

    Reid, Nancy

    living longer mentioned lead time bias and sur- vivor treatment selection bias. Both of these are usually some more. Here is a list, with abbreviated definitions. lead time bias (also called length/time bias this 'lead time' from the survival times of the screened patients. Redelmeier and Singh describe

  9. Lead Slowing-Down Spectrometry Time Spectral Analysis for Spent Fuel Assay: FY12 Status Report

    SciTech Connect (OSTI)

    Kulisek, Jonathan A.; Anderson, Kevin K.; Casella, Andrew M.; Siciliano, Edward R.; Warren, Glen A.

    2012-09-28

    Executive Summary Developing a method for the accurate, direct, and independent assay of the fissile isotopes in bulk materials (such as used fuel) from next-generation domestic nuclear fuel cycles is a goal of the Office of Nuclear Energy, Fuel Cycle R&D, Material Protection and Control Technology (MPACT) Campaign. To meet this goal, MPACT supports a multi-institutional collaboration, of which PNNL is a part, to study the feasibility of Lead Slowing Down Spectroscopy (LSDS). This technique is an active nondestructive assay method that has the potential to provide independent, direct measurement of Pu and U isotopic masses in used fuel with an uncertainty considerably lower than the approximately 10% typical of today’s confirmatory methods. This document is a progress report for FY2012 PNNL analysis and algorithm development. Progress made by PNNL in FY2012 continues to indicate the promise of LSDS analysis and algorithms applied to used fuel assemblies. PNNL further refined the semi-empirical model developed in FY2011 based on singular value decomposition (SVD) to numerically account for the effects of self-shielding. The average uncertainty in the Pu mass across the NGSI-64 fuel assemblies was shown to be less than 3% using only six calibration assemblies with a 2% uncertainty in the isotopic masses. When calibrated against the six NGSI-64 fuel assemblies, the algorithm was able to determine the total Pu mass within <2% uncertainty for the 27 diversion cases also developed under NGSI. Two purely empirical algorithms were developed that do not require the use of Pu isotopic fission chambers. The semi-empirical and purely empirical algorithms were successfully tested using MCNPX simulations as well applied to experimental data measured by RPI using their LSDS. The algorithms were able to describe the 235U masses of the RPI measurements with an average uncertainty of 2.3%. Analyses were conducted that provided valuable insight with regard to design requirements (e.g. Pb stack size, neutron source location) of an LSDS for the purpose of assaying used fuel assemblies. Sensitivity studies were conducted that provide insight as to how the LSDS instrument can be improved by making it more sensitive to the center of the fuel assemblies. In FY2013, PNNL will continue efforts to develop and refine design requirements of an LSDS for the ultimate purpose of assaying used fuel assemblies. Future efforts will be directed toward more extensive experimental benchmarking of currently implemented time-spectra analysis algorithms.

  10. Revisiting the question: Does high-latitude solar activity lead low-latitude solar activity in time phase?

    SciTech Connect (OSTI)

    Kong, D. F.; Qu, Z. N.; Guo, Q. L.

    2014-05-01

    Cross-correlation analysis and wavelet transform methods are used to investigate whether high-latitude solar activity leads low-latitude solar activity in time phase or not, using the data of the Carte Synoptique solar filaments archive from 1919 March to 1989 December. From the cross-correlation analysis, high-latitude solar filaments have a time lead of 12 Carrington solar rotations with respect to low-latitude ones. Both the cross-wavelet transform and wavelet coherence indicate that high-latitude solar filaments lead low-latitude ones in time phase. Furthermore, low-latitude solar activity is better correlated with high-latitude solar activity of the previous cycle than with that of the following cycle, which is statistically significant. Thus, the present study confirms that high-latitude solar activity in the polar regions is indeed better correlated with the low-latitude solar activity of the following cycle than with that of the previous cycle, namely, leading in time phase.

  11. Lead Slowing-Down Spectrometry Time Spectral Analysis for Spent Fuel Assay: FY11 Status Report

    SciTech Connect (OSTI)

    Kulisek, Jonathan A.; Anderson, Kevin K.; Bowyer, Sonya M.; Casella, Andrew M.; Gesh, Christopher J.; Warren, Glen A.

    2011-09-30

    Developing a method for the accurate, direct, and independent assay of the fissile isotopes in bulk materials (such as used fuel) from next-generation domestic nuclear fuel cycles is a goal of the Office of Nuclear Energy, Fuel Cycle R&D, Material Protection and Control Technology (MPACT) Campaign. To meet this goal, MPACT supports a multi-institutional collaboration, of which PNNL is a part, to study the feasibility of Lead Slowing Down Spectroscopy (LSDS). This technique is an active nondestructive assay method that has the potential to provide independent, direct measurement of Pu and U isotopic masses in used fuel with an uncertainty considerably lower than the approximately 10% typical of today's confirmatory assay methods. This document is a progress report for FY2011 PNNL analysis and algorithm development. Progress made by PNNL in FY2011 continues to indicate the promise of LSDS analysis and algorithms applied to used fuel. PNNL developed an empirical model based on calibration of the LSDS to responses generated from well-characterized used fuel. The empirical model, which accounts for self-shielding effects using empirical basis vectors calculated from the singular value decomposition (SVD) of a matrix containing the true self-shielding functions of the used fuel assembly models. The potential for the direct and independent assay of the sum of the masses of 239Pu and 241Pu to within approximately 3% over a wide used fuel parameter space was demonstrated. Also, in FY2011, PNNL continued to develop an analytical model. Such efforts included the addition of six more non-fissile absorbers in the analytical shielding function and the non-uniformity of the neutron flux across the LSDS assay chamber. A hybrid analytical-empirical approach was developed to determine the mass of total Pu (sum of the masses of 239Pu, 240Pu, and 241Pu), which is an important quantity in safeguards. Results using this hybrid method were of approximately the same accuracy as the pure empirical approach. In addition, total Pu with much better accuracy with the hybrid approach than the pure analytical approach. In FY2012, PNNL will continue efforts to optimize its empirical model and minimize its reliance on calibration data. In addition, PNNL will continue to develop an analytical model, considering effects such as neutron-scattering in the fuel and cladding, as well as neutrons streaming through gaps between fuel pins in the fuel assembly.

  12. Time-like pion electromagnetic form factors in $k_{T}$ factorization with the Next-to-leading-order twist-3 contribution

    E-Print Network [OSTI]

    Shan Cheng; Zhen-Jun Xiao

    2015-05-12

    We calculate the time-like pion electromagnetic form factor in the $k_T$ factorization formalism with the inclusion of the next-to-leading-order(NLO) corrections to the leading-twist and sub-leading-twist contributions. It's found that the total NLO correction can enhance (reduce) the magnitude (strong phase) of the leading order form factor by $20\\% - 30\\%$ ( $ 5$ GeV$^2$, and the NLO twist-3 correction play the key role to narrow the gap between the pQCD predictions and the measured values for the time-like pion electromagnetic form factor.

  13. Using lead time data to identify cost saving opportunities in an automotive supply chain : inventory safety stock and trucking carrier pool

    E-Print Network [OSTI]

    Bolton, Jennifer Sarah

    2014-01-01

    Lead time information from suppliers influences decisions at every level of a supply chain, from sourcing and purchasing, to inventory policies, transportation, and plant design. Large volume, high complexity manufacturers, ...

  14. The Minimum Price Contract 

    E-Print Network [OSTI]

    Waller, Mark L.; Amosson, Stephen H.; Welch, Mark; Dhuyvetter, Kevin C.

    2008-10-17

    A minimum price contract is one of many tools a marketer may use to better manage price and production risk while trying to achieve financial goals and objectives. This publication discusses the advantages and disadvantages involved...

  15. A thermosphere-ionosphere-mesosphere-electrodynamics general circulation model (time-GCM): Equinox solar cycle minimum simulations (30-500 km)

    SciTech Connect (OSTI)

    Roble, R.G.; Ridley, E.C.

    1994-03-15

    A new simulation model of the mesosphere, thermosphere, and ionosphere with coupled electrodynamics has been developed and used to calculate the global circulation, temperature and compositional structure between 30-500 km for equinox, solar cycle minimum, geomagnetic quiet conditions. The model incorporates all of the features of the NCAR thermosphere-ionosphere-electrodynamics general circulation model (TIE-GCM) but the lower boundary has been extended downward from 97 to 30 km (10 mb) and it includes the physical and chemical processes appropriate for the mesosphere and upper stratosphere. The first simulation used Rayleigh friction to represent gravity wave drag in the middle atmosphere and although it was able to close the mesospheric jets it severely damped the diurnal tide. Reduced Rayleigh friction allowed the tide to penetrate to thermospheric heights but did not close the jets. A gravity wave parameterization developed by Fritts and Lu allows both features to exist simultaneously with the structure of tides and mean flow dependent upon the strength of the gravity wave source. The model calculates a changing dynamic structure with the mean flow and diurnal tide dominant in the mesosphere, the in-situ generated semi-diurnal tide dominating the lower thermosphere and an in-situ generated diurnal tide in the upper thermosphere. The results also show considerable interaction between dynamics and composition, especially atomic oxygen between 85 and 120 km. 31 refs., 3 figs.

  16. Minimum Day Time Load Calculation and Screening

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    from field measurements available to calculate feeder PV production based in installed Capacity per feeder (Example: capture clear day vs cloudy day): PV gen. on circuit...

  17. Minimum Day Time Load Calculation and Screening

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOE SafetyofDepartment. "NationalTechnologyThis tip

  18. Minimum Spanning Tree What is a Minimum Spanning Tree.

    E-Print Network [OSTI]

    Razak, Saquib

    Algorithm(Graph g, Vertex start){ int n = g.getNumberOfVertices(); Entry table[] = new Entry[n]; for(int v = 0; v new Entry(); table[g.getIndex(start)].distance = 0; PriorityQueue queue = new. · What is a Minimum-Cost Spanning Tree. · Applications of Minimum Cost Spanning Trees. · Prim's Algorithm

  19. Maximum output at minimum cost

    E-Print Network [OSTI]

    Firestone, Jeremy

    Gamesa G90-2.0 MW #12;Maximum output at minimum cost per kWh for low wind sites ®® Class IIIA mast and the electrical substation. This innovative modular design based on TCP/IP architecture has

  20. Minimum Energy Per Bit for Secret Key Acquisition Over Multipath Wireless Channels

    E-Print Network [OSTI]

    Sayeed, Akbar M.

    Minimum Energy Per Bit for Secret Key Acquisition Over Multipath Wireless Channels Tzu-Han Chou the secret key capacity. We analyze the low-SNR regime to quantify the minimum energy per secret key bit of conventional channel capacity, there is a non-zero SNR that achieves the minimum energy per key bit. A time

  1. Energy Consumption of Minimum Energy Coding in

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Energy Consumption of Minimum Energy Coding in CDMA Wireless Sensor Networks Benigno Zurita Ares://www.ee.kth.se/control Abstract. A theoretical framework is proposed for accurate perfor- mance analysis of minimum energy coding energy consumption is analyzed for two coding schemes proposed in the literature: Minimum Energy coding

  2. Dangerous implications of a minimum length in quantum gravity

    E-Print Network [OSTI]

    Cosimo Bambi; Katherine Freese

    2008-07-17

    The existence of a minimum length and a generalization of the Heisenberg uncertainty principle seem to be two fundamental ingredients required in any consistent theory of quantum gravity. In this letter we show that they would predict dangerous processes which are phenomenologically unacceptable. For example, long--lived virtual super--Planck mass black holes may lead to rapid proton decay. Possible solutions of this puzzle are briefly discussed.

  3. Probability density functions for the variable solar wind near the solar cycle minimum

    E-Print Network [OSTI]

    Vörös,; Leitner, M; Narita, Y; Consolini, G; Kovács, P; Tóth, A; Lichtenberger, J

    2015-01-01

    Unconditional and conditional statistics is used for studying the histograms of magnetic field multi-scale fluctuations in the solar wind near the solar cycle minimum in 2008. The unconditional statistics involves the magnetic data during the whole year 2008. The conditional statistics involves the magnetic field time series splitted into concatenated subsets of data according to a threshold in dynamic pressure. The threshold separates fast stream leading edge compressional and trailing edge uncompressional fluctuations. The histograms obtained from these data sets are associated with both large-scale (B) and small-scale ({\\delta}B) magnetic fluctuations, the latter corresponding to time-delayed differences. It is shown here that, by keeping flexibility but avoiding the unnecessary redundancy in modeling, the histograms can be effectively described by a limited set of theoretical probability distribution functions (PDFs), such as the normal, log-normal, kappa and logkappa functions. In a statistical sense the...

  4. arXiv:condmat/0310072 Minimum dissipation principle

    E-Print Network [OSTI]

    Gabrielli, Davide

    uctuation principle which generalizes the well known Boltzmann{Einstein formula for the probability have opposite transformation properties under time reversal, the non dissipative part being in this respect akin to a magnetic term. We emphasize that the minimum dissipation principle is of general

  5. INCREASED LEAD ABSORPTION AND LEAD POISONING

    E-Print Network [OSTI]

    INCREASED LEAD ABSORPTION AND LEAD POISONING IN YOUNG CHILDREN A STATDIE:"IT BY THE CEJde slnt:t! the Surgeon GenerJi's Statement. "~edicJI Aspects of Childhood Lead POisoning," was issued:ld absorption Jnd lead poisoning. Such JCtivities for children will continue to be necessary until sources

  6. Timing and significance of maximum and minimum equatorial insolation

    E-Print Network [OSTI]

    Gildor, Hezi

    are very small. Thus a common belief is that the pronounced $100 ka glacial cycles are not directly linked] The most pronounced climate phenomena over the last 800 ka or so are glacial-interglacial oscillations was that summer insolation dictated whether snow falling during winter would survive melting during summer

  7. LEAD POISONING PREVENTION INFORMATION

    E-Print Network [OSTI]

    Families AreForever LEAD POISONING PREVENTION INFORMATION FOR PARENTS & PROSPECTIVE-lead levels There is no safe level of lead in the body. Often, symptoms are not obvious, so lead poisoning's medical examination in the U.S. or contact your state or local Childhood Lead Poisoning Prevention Program

  8. Microbial oceanography of anoxic oxygen minimum zones

    E-Print Network [OSTI]

    Ulloa, Osvaldo

    Vast expanses of oxygen-deficient and nitrite-rich water define the major oxygen minimum zones (OMZs) of the global ocean. They support diverse microbial communities that influence the nitrogen economy of the oceans, ...

  9. Lead exposure at uncovered outdoor firing ranges

    SciTech Connect (OSTI)

    Goldberg, R.L.; Hicks, A.M.; O'Leary, L.M.; London, S. (University of Southern California School of Medicine, Los Angeles (USA))

    1991-06-01

    Excessive lead exposure in shooting instructors at indoor firing ranges and covered outdoor firing ranges has been documented. The City of Los Angeles assessed exposure of its full-time shooting instructors at uncovered outdoor ranges via air monitoring and blood lead-level measurements. Results of these tests revealed that significant lead exposure and absorption can occur at outdoor firing ranges. The use of copper-jacketed ammunition may decrease air lead levels and decrease lead absorption by range instructors.

  10. Eliminating Lead Poisoning

    E-Print Network [OSTI]

    Eliminating Childhood Lead Poisoning: A Federal Strategy Targeting Lead Paint Hazards President Poisoning: A Federal Strategy Targeting Lead Paint Hazards February 2000 President`s Task Force poisoning can be prevented by identifying whether lead hazards in a home are present and by learning how

  11. Modified Theoretical Minimum Emittance Lattice for an Electron...

    Office of Scientific and Technical Information (OSTI)

    Modified Theoretical Minimum Emittance Lattice for an Electron Storage Ring with Extreme-Low Emittance Citation Details In-Document Search Title: Modified Theoretical Minimum...

  12. Improved initial guess for minimum energy path calculations

    SciTech Connect (OSTI)

    Smidstrup, Søren; Pedersen, Andreas; Stokbro, Kurt

    2014-06-07

    A method is presented for generating a good initial guess of a transition path between given initial and final states of a system without evaluation of the energy. An objective function surface is constructed using an interpolation of pairwise distances at each discretization point along the path and the nudged elastic band method then used to find an optimal path on this image dependent pair potential (IDPP) surface. This provides an initial path for the more computationally intensive calculations of a minimum energy path on an energy surface obtained, for example, by ab initio or density functional theory. The optimal path on the IDPP surface is significantly closer to a minimum energy path than a linear interpolation of the Cartesian coordinates and, therefore, reduces the number of iterations needed to reach convergence and averts divergence in the electronic structure calculations when atoms are brought too close to each other in the initial path. The method is illustrated with three examples: (1) rotation of a methyl group in an ethane molecule, (2) an exchange of atoms in an island on a crystal surface, and (3) an exchange of two Si-atoms in amorphous silicon. In all three cases, the computational effort in finding the minimum energy path with DFT was reduced by a factor ranging from 50% to an order of magnitude by using an IDPP path as the initial path. The time required for parallel computations was reduced even more because of load imbalance when linear interpolation of Cartesian coordinates was used.

  13. Measurement of the centrality dependence of [J over ?] yields and observation of Z production in lead–lead collisions with the ATLAS detector at the LHC

    E-Print Network [OSTI]

    Taylor, Frank E.

    Using the ATLAS detector, a centrality-dependent suppression has been observed in the yield of [J over ?] mesons produced in the collisions of lead ions at the Large Hadron Collider. In a sample of minimum-bias lead–lead ...

  14. Achieving 360 Angle Coverage with Minimum

    E-Print Network [OSTI]

    Tam, Vincent W. L.

    , and the sensors surrounding it are responsible for capturing the images of it. We aim at finding the minimum cost monitoring, target tracking, disaster management, etc [1], [2]. Each sensor is powered by battery which moving around the network and the nodes around the object are responsible to capture the images of it

  15. Minimum-Flip Supertrees: Complexity and Algorithms

    E-Print Network [OSTI]

    Sanderson, Michael J.

    Minimum-Flip Supertrees: Complexity and Algorithms Duhong Chen, Oliver Eulenstein, David Ferna that it is fixed-parameter tractable and give approximation algorithms for special cases. Index Terms assembled from all species in the study. Because the conventional algorithms to solve these problems

  16. Minimum length, extra dimensions, modified gravity and black hole remnants

    SciTech Connect (OSTI)

    Maziashvili, Michael

    2013-03-01

    We construct a Hilbert space representation of minimum-length deformed uncertainty relation in presence of extra dimensions. Following this construction, we study corrections to the gravitational potential (back reaction on gravity) with the use of correspondingly modified propagator in presence of two (spatial) extra dimensions. Interestingly enough, for r?0 the gravitational force approaches zero and the horizon for modified Schwarzschild-Tangherlini space-time disappears when the mass approaches quantum-gravity energy scale. This result points out to the existence of zero-temperature black hole remnants in ADD brane-world model.

  17. Generating Energy Efficiency Project Leads and Allocating Leads...

    Energy Savers [EERE]

    Generating Energy Efficiency Project Leads and Allocating Leads to Contractors Generating Energy Efficiency Project Leads and Allocating Leads to Contractors Better Buildings...

  18. Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group Lead

    E-Print Network [OSTI]

    Boonstra, Rudy

    Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group times) Term of position: September 2013 ­ April 2014 Position Summary: Working with the Sustainability Project Coordinator, the Sustainability Peer Educator Group Leads will be responsible

  19. Leading neutron spectra

    E-Print Network [OSTI]

    A. B. Kaidalov; V. A. Khoze; A. D. Martin; M. G. Ryskin

    2006-05-27

    It is shown that the observation of the spectra of leading neutrons from proton beams can be a good probe of absorptive and migration effects. We quantify how these effects modify the Reggeized pion-exchange description of the measurements of leading neutrons at HERA. We are able to obtain a satisfactory description of all the features of these data. We also briefly discuss the corresponding data for leading baryons produced in hadron-hadron collisions.

  20. Lead, Communications Specialist

    Broader source: Energy.gov [DOE]

    A successful candidate in this position will: Serve as Lead, Communications Specialist for the Communications Team. Assists the Communications Director in planning, coordinating and implementing...

  1. Convective Dynamo Simulation with a Grand Minimum

    E-Print Network [OSTI]

    Augustson, Kyle; Miesch, Mark; Toomre, Juri

    2015-01-01

    The global-scale dynamo action achieved in a simulation of a Sun-like star rotating at thrice the solar rate is assessed. The 3-D MHD Anelastic Spherical Harmonic (ASH) code, augmented with a viscosity minimization scheme, is employed to capture convection and dynamo processes in this G-type star. The simulation is carried out in a spherical shell that encompasses 3.8 density scale heights of the solar convection zone. It is found that dynamo action with a high degree of time variation occurs, with many periodic polarity reversals occurring roughly every 6.2 years. The magnetic energy also rises and falls with a regular period. The magnetic energy cycles arise from a Lorentz-force feedback on the differential rotation, whereas the processes leading to polarity reversals are more complex, appearing to arise from the interaction of convection with the mean toroidal fields. Moreover, an equatorial migration of toroidal field is found, which is linked to the changing differential rotation, and potentially to a no...

  2. Lead carbonate scintillator materials

    DOE Patents [OSTI]

    Derenzo, Stephen E. (Pinole, CA); Moses, William W. (Berkeley, CA)

    1991-01-01

    Improved radiation detectors containing lead carbonate or basic lead carbonate as the scintillator element are disclosed. Both of these scintillators have been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to other known scintillator materials. The radiation detectors disclosed are favorably suited for use in general purpose detection and in medical uses.

  3. Minimum 186 Basin levels required for operation of ECS and CWS pumps

    SciTech Connect (OSTI)

    Reeves, K.K.; Barbour, K.L.

    1992-10-01

    Operation of K Reactor with a cooling tower requires that 186 Basin loss of inventory transients be considered during Design Basis Accident analyses requiring ECS injection, such as the LOCA and LOPA. Since the cooling tower systems are not considered safety systems, credit is not taken for their continued operation during a LOPA or LOCA even though they would likely continue to operate as designed. Without the continued circulation of cooling water to the 186 Basin by the cooling tower pumps, the 186 Basin will lose inventory until additional make-up can be obtained from the river water supply system. Increasing the make-up to the 186 Basin from the river water system may require the opening of manually operated valves, the starting of additional river water pumps, and adjustments of the flow to L Area. In the time required for these actions a loss of basin inventory could occur. The ECS and CWS pumps are supplied by the 186 Basin. A reduction in the basin level will result in decreased pump suction head. This reduction in suction head will result in decreased output from the pumps and, if severe enough, could lead to pump cavitation for some configurations. The subject of this report is the minimum 186 Basin level required to prevent ECS and CWS pump cavitation. The reduction in ECS flow due to a reduced 186 Basin level without cavitation is part of a separate study.

  4. Distributed Minimum Energy Data Gathering and Aggregation in Sensor Networks

    E-Print Network [OSTI]

    Liang, Ben

    Distributed Minimum Energy Data Gathering and Aggregation in Sensor Networks Kevin Yuen, Baochun Li-- In this paper, we propose an effective distributed algorithm to solve the minimum energy data gathering (MEDG input packets into a single output packet. To achieve minimum energy data gathering, the optimal trans

  5. Welfare Effects of Minimum Wage and Other Government Policies

    E-Print Network [OSTI]

    Perloff, Jeffrey M.

    measures. #12;Do government programs such as minimum wage laws, Aid to the Families with De- pendent effects of the minimum wage. Most of the enormous 1 Dalton (1920) suggested that all common welfare government policies and market conditions when evaluating the effects of the minimum wage laws. As Freeman

  6. Lead carbonate scintillator materials

    DOE Patents [OSTI]

    Derenzo, S.E.; Moses, W.W.

    1991-05-14

    Improved radiation detectors containing lead carbonate or basic lead carbonate as the scintillator element are disclosed. Both of these scintillators have been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to other known scintillator materials. The radiation detectors disclosed are favorably suited for use in general purpose detection and in medical uses. 3 figures.

  7. Minimum wear tube support hole design

    DOE Patents [OSTI]

    Glatthorn, Raymond H. (St. Petersburg, FL)

    1986-01-01

    A minimum-wear through-bore (16) is defined within a heat exchanger tube support plate (14) so as to have an hourglass configuration as determined by means of a constant radiused surface curvature (18) as defined by means of an external radius (R3), wherein the surface (18) extends between the upper surface (20) and lower surface (22) of the tube support plate (14). When a heat exchange tube (12) is disposed within the tube support plate (14) so as to pass through the through-bore (16), the heat exchange tube (12) is always in contact with a smoothly curved or radiused portion of the through-bore surface (16) whereby unacceptably excessive wear upon the heat exchange tube (12), as normally developed by means of sharp edges, lands, ridges, or the like conventionally part of the tube support plates, is eliminated or substantially reduced.

  8. Grant Reference Lead / Sole

    E-Print Network [OSTI]

    Rank Overall Score Grant Reference Lead / Sole Grant Grant Holder Research Organisation Project of Birmingham Controls on Soil Carbon Export revealed by Novel Tracers on multiple timescales (SCENT) Standard Grant DEC12 8 8 NE/K011871/1 N Melanie Leng NERC British Geological Survey A 500,000-year environmental

  9. Worker lead exposures during renovation of homes with lead-based paint

    SciTech Connect (OSTI)

    Sussell, A.; Gittleman, J.; Singal, M.

    1998-11-01

    The authors evaluated lead exposures among full-time home renovators and part-time volunteers working primarily in pre-1960 homes with lead-based paint. Potentially hazardous lead exposures were measured during two tasks: exterior dry scraping and wet scraping. Maximum exposures were 120 and 63 {micro}g/m{sup 3}, respectively. Exposures during other tasks, including general repair, weatherization, exterior scraping/painting, window replacement, demolition, and plumbing, were low, as were all 13 full-shift personal exposures. Blood lead levels for full-time workers ranged up to 17.5 {micro}g/dl, with a GM of 5.2 {micro}g/dl; the GM for volunteers was 3.2 {micro}g/dl. All of the paint samples collected from work surfaces had detectable amounts of lead, with 65% of the work surfaces tested having an average lead concentration of >0.5%.

  10. Chapter 1 Childhood Lead Poisoning Childhood Lead Poisoning

    E-Print Network [OSTI]

    Chapter 1 Childhood Lead Poisoning 1 Childhood Lead Poisoning in the United States The problem of childhood lead poisoning. Child- hood lead poisoning is a major, preventable environmental health problem in the United States before 1978 still contain some lead- ScreeningfYoungfChildrenf orfLeadfPoisoning 13 #12

  11. Asymmetric response of maximum and minimum temperatures to soil emissivity change over the Northern African Sahel in a GCM

    E-Print Network [OSTI]

    Zhou, Liming

    Asymmetric response of maximum and minimum temperatures to soil emissivity change over the Northern in the Sahel could lead to reduced land surface emissivity and thus might have an asymmetric impact on daytime balance to changes in soil emissivity over the Sahel using the recently developed Community Land Model

  12. IMPLICATIONS OF THE RECENT LOW SOLAR MINIMUM FOR THE SOLAR WIND DURING THE MAUNDER MINIMUM

    SciTech Connect (OSTI)

    Lockwood, M.; Owens, M. J., E-mail: m.lockwood@reading.ac.uk [Department of Meteorology, University of Reading, Earley Gate, RG6 6BB (United Kingdom)

    2014-01-20

    The behavior of the Sun and near-Earth space during grand solar minima is not understood; however, the recent long and low minimum of the decadal-scale solar cycle gives some important clues, with implications for understanding the solar dynamo and predicting space weather conditions. The speed of the near-Earth solar wind and the strength of the interplanetary magnetic field (IMF) embedded within it can be reliably reconstructed for before the advent of spacecraft monitoring using observations of geomagnetic activity that extend back to the mid-19th century. We show that during the solar cycle minima around 1879 and 1901 the average solar wind speed was exceptionally low, implying the Earth remained within the streamer belt of slow solar wind flow for extended periods. This is consistent with a broader streamer belt, which was also a feature of the recent low minimum (2009), and yields a prediction that the low near-Earth IMF during the Maunder minimum (1640-1700), as derived from models and deduced from cosmogenic isotopes, was accompanied by a persistent and relatively constant solar wind of speed roughly half the average for the modern era.

  13. Nanotechnology Now -Press Release: "Sandia and UNM lead effort to destroy cancers: Boosting medicine with nanotechnology strengthens drug cocktail many times over" http://www.nanotech-now.com/news.cgi?story_id=42258[4/21/2011 11:23:41 AM

    E-Print Network [OSTI]

    Brinker, C. Jeffrey

    Nanotechnology Now - Press Release: "Sandia and UNM lead effort to destroy cancers: Boosting medicine with nanotechnology strengthens drug cocktail many times over" http://www.nanotech-now.com/news.cgi?story_id=42258[4/21/2011 11:23:41 AM] About Us Nanotechnology News Columns Products Directories Career Center

  14. Minimum Efficiency Requirements Tables for Heating and Cooling...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (FEMP) created tables that mirror American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 90.1-2013 tables, which include minimum efficiency...

  15. ITP Steel: Theoretical Minimum Energies to Produce Steel for...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Minimum Energies to Produce Steel for Selected Conditions, March 2000 theoreticalminimumenergies.pdf More Documents & Publications Ironmaking Process Alternatives Screening Study...

  16. Optimizing minimum free-energy crossing points in solution: Linear...

    Office of Scientific and Technical Information (OSTI)

    Optimizing minimum free-energy crossing points in solution: Linear-response free energyspin-flip density functional theory approach Citation Details In-Document Search Title:...

  17. Toolbox Safety Talk Lead Awareness

    E-Print Network [OSTI]

    Pawlowski, Wojtek

    Toolbox Safety Talk Lead Awareness Environmental Health & Safety Facilities Safety & Health Section Health & Safety for recordkeeping. Lead based paint is commonly found in homes built before 1978 and many industrial paints today still contain lead. Lead overexposure is one of the leading causes of workplace

  18. Cardiovascular effects of lead exposure.

    E-Print Network [OSTI]

    Vaziri, N D; Gonick, H C

    2008-01-01

    air quality standards for lead exposure, 2006. ReferencesM, Wen SW. Environmental lead level and pregnancy-inducedDong W, Poulter N. Blood lead and blood pressure: evidence

  19. Cardiovascular effects of lead exposure.

    E-Print Network [OSTI]

    Vaziri, N D; Gonick, H C

    2008-01-01

    Ding Y. Effect of lead on nitric oxide synthase expressionND. Lead-induced hypertension: interplay of nitric oxide andZ. Nitric oxide synthase expression in the course of lead-

  20. Leading Edge Book Review

    E-Print Network [OSTI]

    Coller, Jeff

    such as base composition analysis of labeled RNA (with [32 P] ortho- phosphate) and gradient ultracentrifuga, the most important work of the time was the analysis by Jacob and Monod of lactose metabolism in bacteria

  1. THE MINIMUM FREE ENERGY FOR CONTINUOUS SPECTRUM MATERIALS

    E-Print Network [OSTI]

    Deseri, Luca

    THE MINIMUM FREE ENERGY FOR CONTINUOUS SPECTRUM MATERIALS L. DESERI AND J.M. GOLDEN Abstract. A general closed expression is given for the isothermal minimum free energy of a linear viscoelastic states [6] are uniquely related to histories and the work function is the maximum free energy

  2. The Minimum Wage for Women and Minors

    E-Print Network [OSTI]

    Bodenhafer, Walter Blaine

    1915-06-01

    ., Ko. 1, p. b 2. Ibid., pp. 16-17. 1914. 19 The Ohio Commission made no investigation leading to an es- timate of the cost of living, but Table XVII indicates the number and per cent earning less than several amounts If any one Is taken as a... earning less than y8 per week, as compared with Toledo with Its 57 per cent, "^hese are the extremes. 'xhe other cities range between the two. xt is doubtful whether any close connection can be shown to exist between the cost of living In the different...

  3. Atmospheric lead in downtown Guatemala City

    SciTech Connect (OSTI)

    Durando, M.L.; Aragon, S.R.

    1982-01-01

    Atomic absorption (AA) analysis was employed to determine, for the first time in this country, lead concentrations in aerosols collected in Nuclepore filter media during the months of February and March (1980) in Guatemala City, Guatemala. In particular, the lead in the atmospheric fine particulate was measured in different downtown locations around noontime and in a single location at 1-h intervals throughout the day. The first was used to study short-term variations from one location to the other, and the second one was used to correlate parameters such as traffic density and wind velocity with the levels of airborne lead on the same day. In addition, this paper presents a brief discussion of the lead content in Guatemalan gasoline, the lead levels in street dusts, and the total suspended particulate matter in downtown Guatemala City.

  4. Home refinishing, lead paint, and infant blood lead levels

    SciTech Connect (OSTI)

    Rabinowitz, M.; Leviton, A.; Bellinger, D.

    1985-04-01

    The blood lead levels of 249 infants were measured semi-annually from birth to two years of age; the home paint was sampled and any recent home refinishing activity recorded. Mean blood lead from birth to age 2 years did not vary systematically with age but did correlate significantly with the amount of lead in the indoor paint. Refinishing activity in homes with high lead paint was associated with elevations of blood lead averaging 69 per cent.

  5. On Cartesian Trees and Range Minimum Queries

    E-Print Network [OSTI]

    Demaine, Erik

    between RMQ and the Lowest Common Ancestor (LCA) problem. In LCA, we wish to preprocess a rooted tree and LCA were shown by Gabowet al. [18] to be equivalent in the sense that either one can be reduced in linear time to the other. An LCA instance can be obtained from an RMQ instance on an array A by letting

  6. Ion composition of the topside equatorial ionosphere during solar minimum

    SciTech Connect (OSTI)

    Gonzalez, S.A.; Fejer, B.G. (Utah State Univ., Logan (United States)); Heelis, R.A.; Hanson, W.B. (Univ. of Texas, Richardson (United States))

    1992-04-01

    The authors have used observations from both the Bennett ion mass spectrometer and the retarding potential analyzer on board the Atmosphere Explorer E satellite to study the longitudinally averaged O{sup +}, H{sup +}, and He{sup +} concentrations from 150 to 1,100 km in the equatorial ionosphere during the 1975-1976 solar minimum. The results suggest that the ion mass spectrometer measurements need to be increased by a factor of 2.15 to agree with the densities from the retarding potential analyzer and with ground-based measurements. The peak H{sup +} concentrations are about 2.5 {times} 10{sup 4} cm{sup {minus}3} during the day and 10{sup 4} cm{sup {minus}3} at night and vary little with season. The O{sup +}/H{sup +} transition altitude lies between 750 and 825 km during the day and between 550 and 600 km at night. He{sup +} is a minor species at all altitudes; its concentration is highly variable with a maximum value of about 10{sup 3} cm{sup {minus}3} during equinox daytime.

  7. THE TURBULENT CASCADE AND PROTON HEATING IN THE SOLAR WIND DURING SOLAR MINIMUM

    SciTech Connect (OSTI)

    Coburn, Jesse T.; Smith, Charles W.; Vasquez, Bernard J.; Stawarz, Joshua E.; Forman, Miriam A. E-mail: Charles.Smith@unh.edu E-mail: Joshua.Stawarz@Colorado.edu

    2012-08-01

    The recently protracted solar minimum provided years of interplanetary data that were largely absent in any association with observed large-scale transient behavior on the Sun. With large-scale shear at 1 AU generally isolated to corotating interaction regions, it is reasonable to ask whether the solar wind is significantly turbulent at this time. We perform a series of third-moment analyses using data from the Advanced Composition Explorer. We show that the solar wind at 1 AU is just as turbulent as at any other time in the solar cycle. Specifically, the turbulent cascade of energy scales in the same manner proportional to the product of wind speed and temperature. Energy cascade rates during solar minimum average a factor of 2-4 higher than during solar maximum, but we contend that this is likely the result of having a different admixture of high-latitude sources.

  8. Minimum Distance between Bent and 1-resilient Boolean Functions

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    , INDIA. soumen@iitg.ernet.in 2 Applied Statistics Unit, Indian Statistical Institute, 203, B T Road, Kolkata 700 108, INDIA subho@isical.ac.in Abstract. In this paper we study the minimum distance between

  9. Ninety - Two Percent Minimum Heater Efficiency By 1980 

    E-Print Network [OSTI]

    Mieth, H. C.; Hardie, J. E.

    1980-01-01

    Technology is now available to increase heater efficiencies to 92 percent and more. By 1980, this technology will be field proven and corrosion and reliability problems identified and resolved. Recent studies have shown that a minimum efficiency...

  10. Minimum Purchase Price Regulations (Prince Edward Island, Canada)

    Broader source: Energy.gov [DOE]

    The Minimum Purchase Price Regulations establish the price which utilities must pay for power produced by large-scale renewable energy generators – that is those capable of producing more than 100...

  11. TOWARD THE MINIMUM INNER EDGE DISTANCE OF THE HABITABLE ZONE

    E-Print Network [OSTI]

    Zsom, Andras

    We explore the minimum distance from a host star where an exoplanet could potentially be habitable in order not to discard close-in rocky exoplanets for follow-up observations. We find that the inner edge of the Habitable ...

  12. The minimum information for a qualified BioBrick

    E-Print Network [OSTI]

    Zhou, Mubing

    2012-10-11

    Since the information of many existing BioBricks is incomplete, thus the usage of the BioBricks will be affected. It is necessary to standardize the minimum information required for a qualified BioBrick. Furthermore this ...

  13. Upper bounds on minimum distance of nonbinary quantum stabilizer codes 

    E-Print Network [OSTI]

    Kumar, Santosh

    2005-11-01

    The most popular class of quantum error correcting codes is stabilizer codes. Binary quantum stabilizer codes have been well studied, and Calderbank, Rains, Shor and Sloane (July 1998) have constructed a table of upper bounds on the minimum distance...

  14. Theoretical Minimum Energy Use of a Building HVAC System 

    E-Print Network [OSTI]

    Tanskyi, O.

    2011-01-01

    This paper investigates the theoretical minimum energy use required by the HVAC system in a particular code compliant office building. This limit might be viewed as the "Carnot Efficiency" for HVAC system. It assumes that all ventilation and air...

  15. Minimum Chaperone to Student Ratio and Costs Reserved Tours

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    SH 7/08 Minimum Chaperone to Student Ratio and Costs Reserved Tours Use the table below Costs Preschool 1 adult/4 students Ages 3 and under: free, Students ages 4 and up: $4 each, Adults: $6

  16. Breakthrough: Lead-free Solder

    SciTech Connect (OSTI)

    Anderson, Iver

    2012-01-01

    Ames Laboratory senior metallurgist Iver Anderson explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead-tin solder that has been adopted by more than 50 companies worldwide.

  17. Breakthrough: Lead-free Solder

    ScienceCinema (OSTI)

    Anderson, Iver

    2013-03-01

    Ames Laboratory senior metallurgist Iver Anderson explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead-tin solder that has been adopted by more than 50 companies worldwide.

  18. Lead-based paint assessment

    SciTech Connect (OSTI)

    Lorie, C.; Cowdery, J.W.

    1994-12-31

    In 1977, The US consumer product safety commission banned the use of lead-based paint (LBP) in all industries, except the maritime industry which still has certain privileged uses. Unfortunately for property and building owners, the ban did not come soon enough. In response to this heightened awareness, several environmental market sectors addressing the issues have emerged. These include: residential; soil; commercial; water; and structures. The first and most important step in addressing the concerns posed by the existence of lead based contamination is to quantify the amount of lead-based product, to determine the location of the lead based product and the extent, if any, of lead based contamination, and to make recommendations for the remediation or abatement of the lead product and resultant contamination. In narrowing the focus of these issues, this paper discusses lead-based paint assessment; preparing and organizing the assessment, the regulatory considerations, assessment methodology, and presentation of results.

  19. An algebraic approach to the minimum-cost multi-impulse orbit transfer problem

    E-Print Network [OSTI]

    Martin Avendano; Verónica Martín-Molina; Jorge Martín-Morales; Jorge Ortigas-Galindo

    2015-08-10

    We present a purely algebraic formulation (i.e. polynomial equations only) of the minimum-cost multi-impulse orbit transfer problem without time constraints, while keeping all the variables with a precise physical meaning. We apply general algebraic techniques to solve these equations (resultants, Gr\\"obner bases, etc.) in several situations of practical interest of different degrees of generality. For instance, we provide a proof of the optimality of the Hohmann transfer for the minimum fuel 2-impulse circular to circular orbit transfer problem, and we provide a general formula for the optimal 2-impulse in-plane transfer between two rotated elliptical orbits under a mild symmetry assumption on the two points where the impulses are applied (which we conjecture that can be removed).

  20. Results from the Cooler and Lead Tests

    E-Print Network [OSTI]

    Green, Michael A

    2010-01-01

    and D. Gupta, “Current Leads and Optimized Thermal Packagingtube Gas Cooled Electrical Leads for the g-2 Superconductinga pair of flexible copper leads attached. Figure 5. The Lead

  1. High temperature superconductor current leads

    DOE Patents [OSTI]

    Hull, John R. (Hinsdale, IL); Poeppel, Roger B. (Glen Ellyn, IL)

    1995-01-01

    An electrical lead having one end for connection to an apparatus in a cryogenic environment and the other end for connection to an apparatus outside the cryogenic environment. The electrical lead includes a high temperature superconductor wire and an electrically conductive material distributed therein, where the conductive material is present at the one end of the lead at a concentration in the range of from 0 to about 3% by volume, and at the other end of the lead at a concentration of less than about 20% by volume. Various embodiments are shown for groups of high temperature superconductor wires and sheaths.

  2. Lead-free primary explosives

    DOE Patents [OSTI]

    Huynh, My Hang V.

    2010-06-22

    Lead-free primary explosives of the formula (cat).sub.Y[M.sup.II(T).sub.X(H.sub.2O).sub.6-X].sub.Z, where T is 5-nitrotetrazolate, and syntheses thereof are described. Substantially stoichiometric equivalents of the reactants lead to high yields of pure compositions thereby avoiding dangerous purification steps.

  3. Waste Management Coordinating Lead Authors

    E-Print Network [OSTI]

    Columbia University

    10 Waste Management Coordinating Lead Authors: Jean Bogner (USA) Lead Authors: Mohammed Abdelrafie Ahmed, C. Diaz, A. Faaij, Q. Gao, S. Hashimoto, K. Mareckova, R. Pipatti, T. Zhang, Waste Management University Press, Cambridge, United Kingdom and New York, NY, USA. #12;586 Waste Management Chapter 10 Table

  4. Optimal Allocation of Bandwidth for Minimum Battery Consumption

    E-Print Network [OSTI]

    Cosman, Pamela C.

    properties of the battery under bursty discharge conditions are exploited. In this paper, we exploitOptimal Allocation of Bandwidth for Minimum Battery Consumption Qinghua Zhao, Pamela C. Cosman, a power amplifier utilizes battery energy more efficiently with a higher transmission power. For a given

  5. Optimizing rotational acceleration curves for minimum energy use in electric

    E-Print Network [OSTI]

    Ruina, Andy L.

    the four different methods for calculating the minimum energy value and its corresponding accelerations instance we will calculate the energy using a summation of very small acceleration piecewise "steps to simulate the energy cost of spinning a hypothetical wheel on a motor. We chose the specific motor related

  6. Storage Begins with Purchasing purchase minimum needed for experiment

    E-Print Network [OSTI]

    Cohen, Robert E.

    Storage Begins with Purchasing · purchase minimum needed for experiment ­ do not "buy in bulk://www.ehs.washington.edu/forms/epo/peroxideguidelines.pdf #12;Chemical Storage Basics · https://web.mit.edu/environment/pdf/sop/sop_0023.pdf · http://www.lbl.gov/ehs/chsp/html/storage level · do not store chemicals in fume hoods · flammable storage refrigerator needed for flammable

  7. What is Minimum Impact Research? John R. Spear

    E-Print Network [OSTI]

    minimum impact Yellowstone National Park 2 GEOTHERMAL BIOLOGY AND GEOCHEMISTRY IN YELLOWSTONE NATIONAL.735.1808 Fax: 303.492.7744 Email: spearj@colorado.edu 1 #12;Key Words conservation geothermal leave no trace Yellowstone National Park, for example. Other impacts--grazing, logging, mining, drilling and loss

  8. Structure of minimum-error quantum state discrimination

    E-Print Network [OSTI]

    Joonwoo Bae

    2013-07-19

    Distinguishing different quantum states is a fundamental task having practical applications for information processing. Despite the efforts devoted so far, however, strategies for optimal discrimination are known only for specific examples. We here consider the problem of minimum-error quantum state discrimination where the average error is attempted to be minimized. We show the general structure of minimum-error state discrimination as well as useful properties to derive analytic solutions. Based on the general structure, we present a geometric formulation of the problem, which can be applied to cases where quantum state geometry is clear. We also introduce equivalent classes of sets of quantum states in terms of minimum-error discrimination: sets of quantum states in an equivalence class share the same guessing probability. In particular, for qubit states where the state geometry is found with the Bloch sphere, we illustrate that for an arbitrary set of qubit states, the minimum-error state discrimination with equal prior probabilities can be analytically solved, that is, optimal measurement and the guessing probability are explicitly obtained.

  9. A minimum problem with free boundary for a degenerate quasilinear ...

    E-Print Network [OSTI]

    2005-03-04

    Feb 8, 2005 ... By the strong minimum principle, w0 = 0 in B5/8, since w0 ? 0 and w0(0) ..... 4.7 in [2] and pp. 19–20 in [3]; see also our proof of Theorem 5.1.

  10. Minimum Energy Coding for Wireless NanoSensor Networks

    E-Print Network [OSTI]

    Shihada, Basem

    Minimum Energy Coding for Wireless NanoSensor Networks Murat Kocaoglu Ozgur B. Akan Next-generation nodes. With their extremely small size, nanosensor nodes can only provide limited energy. Hence, power for their realization. Authors in [1] provide a detailed survey on the state-of-the-art in nanosensors and emphasize

  11. Network Coding for Joint Storage and Transmission with Minimum Cost

    E-Print Network [OSTI]

    Jiang, Anxiao "Andrew"

    transmission and data storage in networks. Its power comes from the improved flexibility that codeword symbolsNetwork Coding for Joint Storage and Transmission with Minimum Cost Anxiao (Andrew) Jiang@cs.tamu.edu. Abstract-- Network coding provides elegant solutions to many data transmission problems. The usage

  12. Delay Constrained Minimum Energy Broadcast in Cooperative Wireless Networks

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    Delay Constrained Minimum Energy Broadcast in Cooperative Wireless Networks Marjan Baghaie--We formulate the problem of delay constrained energy-efficient broadcast in cooperative multihop wireless net algorithm that combines dynamic programming and linear programming to yield the min- imum energy broadcast

  13. Approximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Liang, Weifa

    Approximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks Weifa Liang, Senior Member, IEEE Abstract--A wireless ad hoc network consists of mobile nodes that are equipped with energy on energy conservation in wireless ad hoc networks have been conducted. For example, energy efficient

  14. Information Delivery in Large Wireless Networks with Minimum Energy Expense

    E-Print Network [OSTI]

    Wang, Wenye

    Information Delivery in Large Wireless Networks with Minimum Energy Expense Yi Xu and Wenye Wang in large-scale multihop wireless networks because of the limited energy supplies from batteries. We and strategies that reduce energy consumption in wireless net- works to extend network lifetimes. Examples

  15. Minimum Flow Requirements for Southern Steelhead Passage on the

    E-Print Network [OSTI]

    Keller, Ed

    that a minimum flow of 800 cfs would be required to maintain a 0.6 ft. depth from the SCR estuary to Santa Paula Creek, while 500 cfs is needed to maintain this depth from Santa Paula to Sespe Creek, and 700 cfs would was greater than 400-700 cfs. These results indicate that passage flows are likely to exist throughout

  16. Approximating Minimum-Power Degree and Connectivity Problems

    E-Print Network [OSTI]

    Kortsarz, Guy

    . The power con- sumption of a station determines its transmission range, and thus also the stations it can. Assigning power levels to the stations (nodes) determines the resulting communi- cation network. ConverselyApproximating Minimum-Power Degree and Connectivity Problems Guy Kortsarz Vahab S. Mirrokni Zeev

  17. Minimum Delay Communication in Energy Harvesting Systems over Fading Channels

    E-Print Network [OSTI]

    Laneman, J. Nicholas

    by the data where the average is taken over all the random processes in our system, i.e, data arrival, energyMinimum Delay Communication in Energy Harvesting Systems over Fading Channels Mostafa Khoshnevisan, Indiana 46556 Email:{mkhoshne, jnl}@nd.edu Abstract--We consider an energy harvesting wireless system

  18. "Maximum recycling of Material and Energy, Minimum of Landfilling"

    E-Print Network [OSTI]

    Columbia University

    lack of Waste-to-Energy capacity. #12;9 Austria As Germany, but Ban in force already in 2002. Landfill1 "Maximum recycling of Material and Energy, Minimum of Landfilling" "A Sustainable Solution" Håkan in "Recycling". "Waste-to-Energy" is now defined as Recycling, when energy efficiency is > 0,65 Prevention Reuse

  19. The"minimum information about an environmental sequence" (MIENS) specification

    SciTech Connect (OSTI)

    Yilmaz, P.; Kottmann, R.; Field, D.; Knight, R.; Cole, J.R.; Amaral-Zettler, L.; Gilbert, J.A.; Karsch-Mizrachi, I.; Johnston, A.; Cochrane, G.; Vaughan, R.; Hunter, C.; Park, J.; Morrison, N.; Rocca-Serra, P.; Sterk, P.; Arumugam, M.; Baumgartner, L.; Birren, B.W.; Blaser, M.J.; Bonazzi, V.; Bork, P.; Buttigieg, P. L.; Chain, P.; Costello, E.K.; Huot-Creasy, H.; Dawyndt, P.; DeSantis, T.; Fierer, N.; Fuhrman, J.; Gallery, R.E.; Gibbs, R.A.; Giglio, M.G.; Gil, I. San; Gonzalez, A.; Gordon, J.I.; Guralnick, R.; Hankeln, W.; Highlander, S.; Hugenholtz, P.; Jansson, J.; Kennedy, J.; Knights, D.; Koren, O.; Kuczynski, J.; Kyrpides, N.; Larsen, R.; Lauber, C.L.; Legg, T.; Ley, R.E.; Lozupone, C.A.; Ludwig, W.; Lyons, D.; Maguire, E.; Methe, B.A.; Meyer, F.; Nakieny, S.; Nelson, K.E.; Nemergut, D.; Neufeld, J.D.; Pace, N.R.; Palanisamy, G.; Peplies, J.; Peterson, J.; Petrosino, J.; Proctor, L.; Raes, J.; Ratnasingham, S.; Ravel, J.; Relman, D.A.; Assunta-Sansone, S.; Schriml, L.; Sodergren, E.; Spor, A.; Stombaugh, J.; Tiedje, J.M.; Ward, D.V.; Weinstock, G.M.; Wendel, D.; White, O.; Wikle, A.; Wortman, J.R.; Glockner, F.O.; Bushman, F.D.; Charlson, E.; Gevers, D.; Kelley, S.T.; Neubold, L.K.; Oliver, A.E.; Pruesse, E.; Quast, C.; Schloss, P.D.; Sinha, R.; Whitely, A.

    2010-10-15

    We present the Genomic Standards Consortium's (GSC) 'Minimum Information about an ENvironmental Sequence' (MIENS) standard for describing marker genes. Adoption of MIENS will enhance our ability to analyze natural genetic diversity across the Tree of Life as it is currently being documented by massive DNA sequencing efforts from myriad ecosystems in our ever-changing biosphere.

  20. Optimal Allocation of Bandwidth for Minimum Battery Consumption

    E-Print Network [OSTI]

    Cosman, Pamela C.

    Optimal Allocation of Bandwidth for Minimum Battery Consumption Qinghua Zhao, Pamela C. Cosman, a power amplifier utilizes battery energy more efficiently with a higher transmission power. For a given of the bandwidth among source coding, channel coding and mod- ulation result in different amounts of battery usage

  1. THE SOLAR CYCLE AT THE MAUNDER MINIMUM EPOCH

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    THE SOLAR CYCLE AT THE MAUNDER MINIMUM EPOCH HIROKO MIYAHARA, DMITRY SOKOLOFF and ILYA G. USOSKIN Solar-Terrestrial Environmental Laboratory, Nagoya University Nagoya, Aichi 464-8601, Japan Department minima, when the solar dynamo was in a special mode. We review available sets of direct and indirect data

  2. BIOENGINEERING GRADUATE CERTIFICATE PROGRAM ADVISING SHEET (minimum 15 credits)

    E-Print Network [OSTI]

    Fernandez, Eduardo

    BIOENGINEERING GRADUATE CERTIFICATE PROGRAM ADVISING SHEET (minimum 15 credits) Name: Z Number to Bioengineering 3 BME 5742 BioSystems Modeling & Control 3 BME 6572 Nanotechnology 3 BME 6762 Bioinformatics: Bioengineering Perspectives (prev EEL 6935 Bioinformatics) 3 CET 5888 Automatic Biometrics 3 EEL 5661 Robotic

  3. Predicting Daily Net Radiation Using Minimum Climatological Data1

    E-Print Network [OSTI]

    .1061/ ASCE 0733-9437 2003 129:4 256 CE Database subject headings: Radiation; Solar radiationPredicting Daily Net Radiation Using Minimum Climatological Data1 S. Irmak, M.ASCE2 ; A. Irmak3 ; J Abstract: Net radiation (Rn) is a key variable for computing reference evapotranspiration and is a driving

  4. Alcohol, Tobacco and Other Drugs Minimum Standard Alcohol, Tobacco and Other Drugs Minimum Standard (April 2015) Page 1

    E-Print Network [OSTI]

    Wapstra, Erik

    Resources Approved and commenced April 2015 Review by April, 2018 Relevant Legislation, Ordinance, Rule and Regulations 2012 Work Health and Safety Policy Responsible Organisational Unit Work Health and Safety Unit Minimum Standard (April 2015) Page 2 1 Executive Summary The University of Tasmania is committed

  5. Review: The Great Lead Water Pipe Disaster

    E-Print Network [OSTI]

    Karalus, Daniel E

    2010-01-01

    Review: The Great Lead Water Pipe Disaster By WernerUSA Troesken, Werner. The Great Lead Water Pipe Disaster.paper. Alkaline paper. Lead poisoning usually conjures

  6. LEAD PAINT DISCLOSURE Housing built before 1978 may contain lead-based paint. Lead from paint, paint chips, and dust

    E-Print Network [OSTI]

    Royer, Dana

    LEAD PAINT DISCLOSURE Housing built before 1978 may contain lead-based paint. Lead from paint, paint chips, and dust can pose health hazards if not taken care of properly. Lead exposure is especially the presence of known lead-based paint and lead-based paint hazards in the dwelling. Tenants must also receive

  7. Observation of the Density Minimum in Deeply Supercooled Confined Water

    E-Print Network [OSTI]

    Dazhi Liu; Yang Zhang; Chia-Cheng Chen; Chung-Yuan Mou; Peter H Poole; Sow-Hsin Chen

    2007-04-17

    Small angle neutron scattering (SANS) is used to measure the density of heavy water contained in 1-D cylindrical pores of mesoporous silica material MCM-41-S-15, with pores of diameter of 15+-1 A. In these pores the homogenous nucleation process of bulk water at 235 K does not occur and the liquid can be supercooled down to at least 160 K. The analysis of SANS data allows us to determine the absolute value of the density of D2O as a function of temperature. We observe a density minimum at 210+-5 K with a value of 1.041+-0.003 g/cm3. We show that the results are consistent with the predictions of molecular dynamics simulations of supercooled bulk water. This is the first experimental report of the existence of the density minimum in supercooled water.

  8. Industrial lead paint removal specifications

    SciTech Connect (OSTI)

    Stone, R.C.

    1997-06-01

    The purpose of this paper is to inform the reader as to some of the pertinent rules and regulations promulgated by the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA) that may effect an industrial lead paint removal project. The paper discusses a recommended schedule of procedures and preparations to be followed by the lead paint removal specification writer when analyzing the possible impact of the project on the environment, the public and workers. Implications of the Clean Air Act, the Clean Water Act and the Resource Conservation and Recovery Act (RCRA) along with hazardous waste handling, manifesting, transporting and disposal procedures are discussed with special emphasis placed as to their impact on the writer and the facility owner. As the rules and regulations are highly complex, the writer has attempted to explain the methodology currently being used in state-of-the-art industrial lead abatement specifications.

  9. Engineer Russ Feder leads development of diagnostic tools for...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineer Russ Feder leads development of diagnostic tools for US ITER as physicist Dave Johnson shifts to part-time work By John Greenwald March 16, 2015 Tweet Widget Google Plus...

  10. Minimum information about a marker gene sequence (MIMARKS) and minimum information about any (x) sequence (MIxS) specifications.

    SciTech Connect (OSTI)

    Yilmaz, P.; Kottmann, R.; Field, D.; Knight, R.; Cole, J. R.; Amaral-Zettler, L.; Gilbert, J. A.

    2011-05-01

    Here we present a standard developed by the Genomic Standards Consortium (GSC) for reporting marker gene sequences - the minimum information about a marker gene sequence (MIMARKS). We also introduce a system for describing the environment from which a biological sample originates. The 'environmental packages' apply to any genome sequence of known origin and can be used in combination with MIMARKS and other GSC checklists. Finally, to establish a unified standard for describing sequence data and to provide a single point of entry for the scientific community to access and learn about GSC checklists, we present the minimum information about any (x) sequence (MIxS). Adoption of MIxS will enhance our ability to analyze natural genetic diversity documented by massive DNA sequencing efforts from myriad ecosystems in our ever-changing biosphere.

  11. Soluble Lead Flow Battery: Soluble Lead Flow Battery Technology

    SciTech Connect (OSTI)

    2010-09-01

    GRIDS Project: General Atomics is developing a flow battery technology based on chemistry similar to that used in the traditional lead-acid battery found in nearly every car on the road today. Flow batteries store energy in chemicals that are held in tanks outside the battery. When the energy is needed, the chemicals are pumped through the battery. Using the same basic chemistry as a traditional battery but storing its energy outside of the cell allows for the use of very low cost materials. The goal is to develop a system that is far more durable than today’s lead-acid batteries, can be scaled to deliver megawatts of power, and which lowers the cost of energy storage below $100 per kilowatt hour.

  12. Minimum Cuts of A Time-Varying Background David Russell and Shaogang Gong

    E-Print Network [OSTI]

    Gong, Shaogang

    foreground, whilst people park their cars, which are eventually subsumed by the background. The most commonly implementations it is difficult to avoid such background models being contaminated by foreground scene content

  13. Near minimum-time maneuvers of large space structures using parameter optimization and lyapunov feedback control 

    E-Print Network [OSTI]

    Carter, Michael Timothy

    1993-01-01

    on the Advanced Space Structures Technology Research Experiment (ASTREX) test article, located at Phillips Laboratory, Edwards AFB, CA. The ASTREX structure, with an approximate total mass of 4106 kg., is a dynamically-scaled structural model of a 3-mirror space...

  14. Study of Cosmic-Ray Modulation during the Recent Unusual Minimum and Mini Maximum of Solar Cycle 24

    E-Print Network [OSTI]

    Aslam, O P M

    2015-01-01

    After a prolonged and deep solar minimum at the end of Cycle 23, the current Solar Cycle 24 is one of the lowest cycles. These two periods of deep minimum and mini maximum are separated by a period of increasing solar activity. We study the cosmic-ray intensity variation in relation with the solar activity, heliospheric plasma and field parameters, including the heliospheric current sheet, during these three periods (phases) of different activity level and nature: (a) a deep minimum, (b) an increasing activity period and (c) a mini maximum. We use neutron monitor data from stations located around the globe to study the rigidity dependence on modulation during the two extremes, i.e., minimum and maximum. We also study the time lag between the cosmic-ray intensity and various solar and interplanetary parameters separately during the three activity phases. We also analyze the role of various parameters, including the current sheet tilt, in modulating the cosmic-ray intensity during the three different phases. Th...

  15. Minimum pressure envelope cavitation analysis using two-dimensional panel method

    E-Print Network [OSTI]

    Peterson, Christopher J., S.M. Massachusetts Institute of Technology

    2008-01-01

    An analysis tool for calculating minimum pressure envelopes was developed using XFOIL. This thesis presents MATLAB® executables that interface with a modified version of XFOIL for determining the minimum pressure of a foil ...

  16. Fermion Masses and Mixings from a Minimum Principle

    E-Print Network [OSTI]

    Rodrigo Alonso

    2014-05-22

    We analyze the structure of quark and lepton mass matrices under the hypothesis that they are determined from a minimum principle applied to a generic potential invariant under the $\\left[U(3)\\right]^5\\otimes {\\mathcal O}(3)$ flavor symmetry, acting on Standard Model fermions and right-handed neutrinos. Unlike the quark case, we show that hierarchical masses for charged leptons are naturally accompanied by degenerate Majorana neutrinos with one mixing angle close to maximal, a second potentially large, a third one necessarily small, and one maximal relative Majorana phase. The scheme presented here could be tested in the near future via neutrino-less double beta decay and cosmological measurements.

  17. Do Frictions Matter in the Labor Market? Accessions, Separations, and Minimum Wage Effects

    E-Print Network [OSTI]

    Dube, Arindrajit; Lester, T. William; Reich, Michael

    2011-01-01

    churn­ ing. B y altering the wage distribution, the minimum wage policy can affect equilibrium separation rates.

  18. CONDITIONBIASOF HUNTER-SHOTRING-NECKEDDUCKS EXPOSEDTO LEAD

    E-Print Network [OSTI]

    McCracken, Kevin G.

    CONDITIONBIASOF HUNTER-SHOTRING-NECKEDDUCKS EXPOSEDTO LEAD KEVING. McCRACKEN,U.S. Geological-neckedducks(Aythyacollaris)exposedto lead by testing the null hypothesis that ducks shot by hunters do not differ in physiological condition lead. Collection type-by-concentration of blood lead and age-by-sex-by-concentration of blood lead

  19. What is lead-based paint

    SciTech Connect (OSTI)

    Vernon, L.S.

    1994-03-01

    The number of variety of lead-abatement regulations and requirements make it difficult and confusing to identify and properly respond to dangerous levels of lead in every situation. Definitions of lead-based paint'' and three test methods for lead detection are described to help determine when and how to test for the presence of lead.

  20. Transport moments beyond the leading order

    E-Print Network [OSTI]

    Gregory Berkolaiko; Jack Kuipers

    2011-07-11

    For chaotic cavities with scattering leads attached, transport properties can be approximated in terms of the classical trajectories which enter and exit the system. With a semiclassical treatment involving fine correlations between such trajectories we develop a diagrammatic technique to calculate the moments of various transport quantities. Namely, we find the moments of the transmission and reflection eigenvalues for systems with and without time reversal symmetry. We also derive related quantities involving an energy dependence: the moments of the Wigner delay times and the density of states of chaotic Andreev billiards, where we find that the gap in the density persists when subleading corrections are included. Finally, we show how to adapt our techniques to non-linear statistics by calculating the correlation between transport moments. In each setting, the answer for the $n$-th moment is obtained for arbitrary $n$ (in the form of a moment generating function) and for up to the three leading orders in terms of the inverse channel number. Our results suggest patterns which should hold for further corrections and by matching with the low order moments available from random matrix theory we derive likely higher order generating functions.

  1. Laminar-Turbulent Transition: Calculation of Minimum Critical Reynolds Number in Channel Flow

    E-Print Network [OSTI]

    Laminar-Turbulent Transition: Calculation of Minimum Critical Reynolds Number in Channel Flow) for laminar-turbulent transition in pipe and channel flows. For pipe flow, the minimum critical Reynolds laminar to turbulent flow Rc2 Rc from turbulent to laminar flow Rc(min) minimum Rc Re Reynolds number = UH

  2. Guidelines for Minimum Standards for Learning Management System (LMS) Unit Design

    E-Print Network [OSTI]

    Tobar, Michael

    Guidelines for Minimum Standards for Learning Management System (LMS) Unit Design Overview Ensuring a minimum standard for design of an LMS unit for teaching, learning and assessment purposes at UWA supports for their units. A demonstration minimum standards LMS unit is viewable at: http

  3. Analysis of Minimum Cost in Shape-Optimized Litz-Wire Inductor Windings

    E-Print Network [OSTI]

    Analysis of Minimum Cost in Shape-Optimized Litz-Wire Inductor Windings C. R. Sullivan J. D. Mc the IEEE. #12;Analysis of Minimum Cost in Shape-Optimized Litz-Wire Inductor Windings Charles R. Sullivan://engineering.dartmouth.edu/inductor Abstract--Litz-wire windings for gapped inductors are optimized for minimum cost within a loss constraint

  4. Capacity Region, Minimum Energy and Delay for a Mobile Ad-Hoc Network

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    Capacity Region, Minimum Energy and Delay for a Mobile Ad-Hoc Network Rahul Urgaonkar, Michael J in a mobile ad-hoc network: the capacity region and the minimum energy function of the network. The capacity limits of a mobile ad-hoc network are the capacity region and the minimum energy function of the network

  5. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 8, NO. 2, FEBRUARY 2009 985 Minimum Energy Coding in

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 8, NO. 2, FEBRUARY 2009 985 Minimum Energy for accurate comparison of minimum energy coding in Coded Division Mul- tiple Access (CDMA) Wireless Sensor efficient than ME only for short codewords. Index Terms--Wireless sensor network (WSNs), minimum energy

  6. GEOMAGNETIC EFFECTS OF INTERPLANETARY SHOCK WAVES DURING SOLAR MINIMUM (1995-1996) AND SOLAR MAXIMUM (2000)

    E-Print Network [OSTI]

    2000-01-01

    GEOMAGNETIC EFFECTS OF INTERPLANETARY SHOCK WAVES DURING SOLAR MINIMUM (1995-1996) AND SOLAR during solar minimum (1995-1996) and solar maximum (2000) periods are obtained. It is observed that solar significant correlations during both solar maximum and solar minimum. The dynamic pressure variation, however

  7. LANGMUIR WAVE ACTIVITY: COMPARING THE ULYSSES SOLAR MINIMUM AND SOLAR MAXIMUM ORBITS

    E-Print Network [OSTI]

    California at Berkeley, University of

    ). The top three panels correspond to the southern segment of the solar minimum orbit; repeated passesLANGMUIR WAVE ACTIVITY: COMPARING THE ULYSSES SOLAR MINIMUM AND SOLAR MAXIMUM ORBITS R. J at the electron plasma frequency) during the solar minimum and solar maximum orbits of Ulysses. At high latitudes

  8. Characterization of candidate DOE sites for fabricating MOX fuel for lead assemblies

    SciTech Connect (OSTI)

    Holdaway, R.F.; Miller, J.W.; Sease, J.D.; Moses, R.J.; O`Connor, D.G.; Carrell, R.D.; Jaeger, C.D.; Thompson, M.L.; Strasser, A.A.

    1998-03-01

    The Office of Fissile Materials Disposition (MD) of the Department of Energy (DOE) is directing the program to disposition US surplus weapons-usable plutonium. For the reactor option for disposition of this surplus plutonium, MD is seeking to contract with a consortium, which would include a mixed-oxide (MOX) fuel fabricator and a commercial US reactor operator, to fabricate and burn MOX fuel in existing commercial nuclear reactors. This option would entail establishing a MOX fuel fabrication facility under the direction of the consortium on an existing DOE site. Because of the lead time required to establish a MOX fuel fabrication facility and the need to qualify the MOX fuel for use in a commercial reactor, MD is considering the early fabrication of lead assemblies (LAs) in existing DOE facilities under the technical direction of the consortium. The LA facility would be expected to produce a minimum of 1 metric ton heavy metal per year and must be operational by June 2003. DOE operations offices were asked to identify candidate sites and facilities to be evaluated for suitability to fabricate MOX fuel LAs. Savannah River Site, Argonne National Laboratory-West, Hanford, Lawrence Livermore National Laboratory, and Los Alamos National Laboratory were identified as final candidates to host the LA project. A Site Evaluation Team (SET) worked with each site to develop viable plans for the LA project. SET then characterized the suitability of each of the five plans for fabricating MOX LAs using 28 attributes and documented the characterization to aid DOE and the consortium in selecting the site for the LA project. SET concluded that each option has relative advantages and disadvantages in comparison with other options; however, each could meet the requirements of the LA project as outlined by MD and SET.

  9. MULTI-FLUID MODEL OF A STREAMER AT SOLAR MINIMUM AND COMPARISON WITH OBSERVATIONS

    SciTech Connect (OSTI)

    Ofman, Leon [Department of Physics, Catholic University of America, and NASA Goddard Space Flight Center, Code 671, Greenbelt, MD 20771 (United States); Abbo, Lucia; Giordano, Silvio, E-mail: Leon.Ofman@nasa.gov [INAF Astronomical Observatory of Turin (Italy)

    2011-06-10

    We present the results of a time-dependent 2.5-dimensional three-fluid magnetohydrodynamic model of the coronal streamer belt, which is compared with the slow solar wind plasma parameters obtained in the extended corona by the UV spectroscopic data from the Ultraviolet Coronagraph Spectrometer (UVCS) on board SOHO during the past minimum of solar activity (Carrington Rotation 1913). Our previous three-fluid streamer model has been improved by considering the solar magnetic field configuration relevant for solar minimum conditions, and preferential heating for O{sup 5+} ions. The model was run until a fully self-consistent streamer solution was obtained in the quasi-steady state. The plasma parameters from the multi-fluid model were used to compute the expected UV observables from H I Ly{alpha} 1216 A and O VI 1032 A spectral lines, and the results were compared in detail with the UVCS measurements. A good agreement between the model and the data was found. The results of the study provide insight into the acceleration and heating of the multi-ion slow solar wind.

  10. One Vaccine Leads to Another

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access toOctober 1996Technologies / OmbudsmanOne Vaccine Leads to Another

  11. One Vaccine Leads to Another

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass mapSpeeding access toOctober 1996Technologies / OmbudsmanOne Vaccine Leads to

  12. One Vaccine Leads to Another

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSEHowScientificOmbuds OfficeOne Vaccine Leads to Another

  13. CEC3002012003LCD LEAD COMMISSIONER DRAFT

    E-Print Network [OSTI]

    APRIL 2012 CEC3002012003LCD LEAD COMMISSIONER DRAFT GUIDEBOOK RENEWABLE ENERGY PROGRAM OVERALL PROGRAM GUIDEBOOK Fourth Edition Lead Commissioner Draft Guidebook CALIFORNIA ENERGY COMMISSION, California 95814 M Staff Proposed Errata to the Lead Commissioner Draft Renewables Portfolio Standard

  14. Lead-Safe Housing Policy Guidance

    E-Print Network [OSTI]

    Lead-Safe Housing Policy Guidance #12;ACKNOWLEDGEMENTS This guidance was prepared by the Alliance Gumm. The Alliance thanks the Childhood Lead Poisoning Prevention Branch of the Centers for Disease..............................................................................................................................1 PART I Basic Lead-Safe Housing Standards

  15. Where Is Lead Found? Paint in many homes built before 1978 may contain lead.

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Where Is Lead Found? · Paint in many homes built before 1978 may contain lead. · Soil surrounding a home may have lead from exterior paint dust or from leaded gasoline in cars. · Household dust can contain lead from deteriorating lead- based paint or from soil containing lead that is tracked

  16. Lead phosphate glass compositions for optical components

    DOE Patents [OSTI]

    Sales, Brian C. (Oak Ridge, TN); Boatner, Lynn A. (Oak Ridge, TN)

    1987-01-01

    A lead phosphate glass to which has been added indium oxide or scandium oe to improve chemical durability and provide a lead phosphate glass with good optical properties.

  17. Power Marketing Administrations Leading the Nation's Transition...

    Energy Savers [EERE]

    Leading the Nation's Transition to a 21st Century Electric Grid Power Marketing Administrations Leading the Nation's Transition to a 21st Century Electric Grid November 19, 2012 -...

  18. Cities Leading through Energy Analysis and Planning

    Broader source: Energy.gov [DOE]

    The Cities Leading through Energy Analysis and Planning (Cities-LEAP) project delivers standardized, localized energy data and analysis that enables cities to lead clean energy innovation and...

  19. Dissolution of lead paint in aqueous solutions

    SciTech Connect (OSTI)

    Barnes, G.L.; Davis, A.P.

    1996-07-01

    An analysis of the rate and extent of lead leaching from a lead-based paint was completed. At low-solution pH, dissolution was rapid and approached 80% of the total lead. Residual lead can be estimated based on the predicted solubility of lead carbonate and basic lead carbonate. Release of lead from the paint was slower than that from pure basic lead carbonate due to inhibition by the paint matrix. Although the dissolved concentration of lead in solution at neutral/high pH was low, the paint binder was apparently destroyed at these pH values, releasing colloidal lead pigment particles. The presence of ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA) enhanced both the rate and degree of lead dissolution, while benzoic acid had a minimal effect.

  20. Neutrino Mixing and Masses from a Minimum Principle

    E-Print Network [OSTI]

    R. Alonso; M. B. Gavela; G. Isidori; L. Maiani

    2013-10-24

    We analyze the structure of quark and lepton mass matrices under the hypothesis that they are determined from a minimum principle applied to a generic potential invariant under the $\\left[SU(3)\\right]^5\\otimes \\mathcal O(3)$ flavor symmetry, acting on Standard Model fermions and right-handed neutrinos. Unlike the quark case, we show that hierarchical masses for charged leptons are naturally accompanied by degenerate Majorana neutrinos with one mixing angle close to maximal, a second potentially large, a third one necessarily small, and one maximal relative Majorana phase. Adding small perturbations the predicted structure for the neutrino mass matrix is in excellent agreement with present observations and could be tested in the near future via neutrino-less double beta decay and cosmological measurements. The generalization of these results to arbitrary sew-saw models is also discussed.

  1. R Coronae Borealis Stars at Minimum Light -- UW Cen

    E-Print Network [OSTI]

    N. Kameswara Rao; B. E. Reddy; D. L. Lambert

    2004-09-09

    Two high-resolution optical spectra of the R Coronae Borealis star UW Cen in decline are discussed. A spectrum from mid-1992 when the star had faded by three magnitudes shows just a few differences with the spectrum at maximum light. The ubiquitous sharp emission lines seen in R CrB at a similar drop below maximum light are absent. In contrast, a spectrum from mid-2002 when the star was five magnitudes below maximum light shows an array of sharp emission lines and a collection of broad emission lines. Comparisons are made with spectra of R CrB obtained during the deep 1995-1996 minimum. The many common features are discussed in terms of a torus-jet geometry.

  2. Results from the Cooler and Lead Tests

    SciTech Connect (OSTI)

    Green, Michael A

    2010-06-10

    The report presents the results of testing MICE spectrometer magnet current leads on a test apparatus that combines both the copper leads and the high temperature superconducting (HTS) leads with a single Cryomech PT415 cooler and liquid helium tank. The current is carried through the copper leads from 300 K to the top of the HTS leads. The current is then carried through the HTS leads to a feed-through from the vacuum space to the inside of a liquid helium tank. The experiment allows one to measure the performance of both cooler stages along with the performance of the leads. While the leads were powered we measured the voltage drops through the copper leads, through the HTS leads, through spliced to the feed-through, through the feed-through and through the low-temperature superconducting loop that connects one lead to the other. Measurements were made using the leads that were used in spectrometer magnet 1A and spectrometer magnet 2A. These are the same leads that were used for Superbend and Venus magnets at LBNL. The IL/A for these leads was 5.2 x 10{sup 6} m{sup -1}. The leads turned out to be too long. The same measurements were made using the leads that were installed in magnet 2B. The magnet 2B leads had an IL/A of 3.3 x 10{sup 6} A m{sup -1}. This report discusses the cooler performance and the measured electrical performance of the lead circuit that contains the copper leads and the superconducting leads. All of the HTS leads that were installed in magnet 2B were current tested using this apparatus.

  3. Observed Minimum Illuminance Threshold for Night Market Vendors in Kenya who use LED Lamps

    SciTech Connect (OSTI)

    Johnstone, Peter; Jacobson, Arne; Mills, Evan; Radecsky, Kristen

    2009-03-21

    Creation of light for work, socializing, and general illumination is a fundamental application of technology around the world. For those who lack access to electricity, an emerging and diverse range of LED based lighting products hold promise for replacing and/or augmenting their current fuel-based lighting sources that are costly and dirty. Along with analysis of environmental factors, economic models for total cost-ofownership of LED lighting products are an important tool for studying the impacts of these products as they emerge in markets of developing countries. One important metric in those models is the minimum illuminance demanded by end-users for a given task before recharging the lamp or replacing batteries. It impacts the lighting service cost per unit time if charging is done with purchased electricity, batteries, or charging services. The concept is illustrated in figure 1: LED lighting products are generally brightest immediately after the battery is charged or replaced and the illuminance degrades as the battery is discharged. When a minimum threshold level of illuminance is reached, the operational time for the battery charge cycle is over. The cost to recharge depends on the method utilized; these include charging at a shop at a fixed price per charge, charging on personal grid connections, using solar chargers, and purchasing dry cell batteries. This Research Note reports on the observed"charge-triggering" illuminance level threshold for night market vendors who use LED lighting products to provide general and task oriented illumination. All the study participants charged with AC power, either at a fixed-price charge shop or with electricity at their home.

  4. EPA Lead Safety for Renovation, Repair and

    E-Print Network [OSTI]

    Tennessee, University of

    EPA Lead Safety for Renovation, Repair and Painting (RRP) Course Certified Renovators Class, CSP, CHMM, Certified Lead Paint Inspector.; Certified Renovator; EPA Ac- credited Lead RRP trainer or fax registratio Registration Form Cash Method of Payment Check Name Mailing Address Phone Lead Safety

  5. APPENDIX F Partition Coefficients For Lead

    E-Print Network [OSTI]

    APPENDIX F Partition Coefficients For Lead #12;Appendix F Partition Coefficients For Lead F.1.0 Background The review of lead Kd data reported in the literature for a number of soils led to the following important conclusions regarding the factors which influence lead adsorption on minerals, soils

  6. LEAD at Unidata Status Update, April 2009

    E-Print Network [OSTI]

    LEAD at Unidata Status Update, April 2009 Mohan Ramamurthy The LEAD project is currently in the no-cost extension period and nearing the end of its period of performance as an NSF Large ITR award. LEAD has and networking to huge data sets, human decision making and complex virtual organizations ­ LEAD functionality

  7. Henry and Fred Learn about Lead

    E-Print Network [OSTI]

    Holsinger, Kent

    Henry and Fred Learn about Lead Joan Bothell Activity book #12;Henry and Fred Learn about Lead the children's storybook Henry and Fred Learn about Lead/Enrique y Federico aprenden sobre el plomo (2003 of this activity book. The Henry and Fred storybook is about keeping children safe from lead poisoning, a serious

  8. Childhood Lead Poisoning What Is the Problem?

    E-Print Network [OSTI]

    CS239775 Childhood Lead Poisoning What Is the Problem? Approximately 500,000 U.S. children aged 1. Lead poisoning can affect nearly every system in the body. Because lead poisoning often occurs with no obvious symptoms, it frequently goes unrecognized. Lead poisoning can cause learning disabilities

  9. Chapter 6: Research Priorities Childhood Lead Poisoning

    E-Print Network [OSTI]

    Chapter 6: Research Priorities 6 Childhood Lead Poisoning Prevention Research Priorities If we are to improve lead poisoning prevention strategies, we need additional research in the following areas: 1 to control lead hazards in housing. · The effectiveness of family education about lead poisoning prevention

  10. Lead Safety Awareness This Bulletin provides information on the safe handling of lead

    E-Print Network [OSTI]

    Lead Safety Awareness PURPOSE This Bulletin provides information on the safe handling of lead and lead compounds during use and storage. Improper handling of lead and lead compounds may impact operations at Department of Energy (DOE) facilities. BACKGROUND Lead is found in batteries, pipes, solder

  11. Metaproteomics reveals differential modes of metabolic coupling among ubiquitous oxygen minimum zone microbes

    SciTech Connect (OSTI)

    Hawley, Alyse K.; Brewer, Heather M.; Norbeck, Angela D.; Pasa-Tolic, Ljiljana; Hallam, Steven J.

    2014-08-05

    Oxygen minimum zones (OMZs) are intrinsic water column features arising from respiratory oxygen demand during organic matter degradation in stratified marine waters. Currently OMZs are expanding due to global climate change. This expansion alters marine ecosystem function and the productivity of fisheries due to habitat compression and changes in biogeochemical cycling leading to fixed nitrogen loss and greenhouse gas production. Here we use metaproteomics to chart spatial and temporal patterns of gene expression along defined redox gradients in a seasonally anoxic fjord, Saanich Inlet to better understand microbial community responses to OMZ expansion. The expression of metabolic pathway components for nitrification, anaerobic ammonium oxidation (anammox), denitrification and inorganic carbon fixation predominantly co-varied with abundance and distribution patterns of Thaumarchaeota, Nitrospira, Planctomycetes and SUP05/ARCTIC96BD-19 Gammaproteobacteria. Within these groups, pathways mediating inorganic carbon fixation and nitrogen and sulfur transformations were differentially expressed across the redoxcline. Nitrification and inorganic carbon fixation pathways affiliated with Thaumarchaeota dominated dysoxic waters and denitrification, sulfur-oxidation and inorganic carbon fixation pathways affiliated with SUP05 dominated suboxic and anoxic waters. Nitrite-oxidation and anammox pathways affiliated with Nitrospina and Planctomycetes respectively, also exhibited redox partitioning between dysoxic and suboxic waters. The differential expression of these pathways under changing water column redox conditions has quantitative implications for coupled biogeochemical cycling linking different modes of inorganic carbon fixation with distributed nitrogen and sulfur-based energy metabolism extensible to coastal and open ocean OMZs.

  12. SU-E-P-09: Radiation Transmission Measurements and Evaluation of Diagnostic Lead-Based and Lead-Free Aprons

    SciTech Connect (OSTI)

    Syh, J

    2014-06-01

    Purpose: This study was conducted to ensure that various lead shield apron manufacturers provided accurate attenuation factors regardless of whether the apron was made of lead-based or lead-free equivalent material. Methods: A calibrated ionization survey meter was placed at chest height and 36 cm horizontally away from a solid water phantom on a simulator couch. Measurements were done with or without apron. Radiation field was set to 24cmx24cm with the phantom at 100cm source-to-surface distance. Irradiation time was set for 1 minute at voltages of 60, 80, 100 and 120 kVp. Current was set at 6mA. Results: Between 60 kVp and 120 kVp, the transmission through 0.50 mm of lead-based apron was between 1.0% and 6.5% with a mean value of 3.2% and a standard deviation (s.d.) of 1.4%. The transmissions through the 0.50 mm lead-free aprons were 1.0 % to 12.0% with a mean value of 6.1% and s.d. of 2.6%. At 120 kVp, the transmission value was 6.5% for 0.50 mm lead-based apron and 11.1% to 12.0% for 0.50 mm lead-free aprons. The radiation transmissions at 80 kVp, measured in two different 0.5 mm lead-free aprons, were 4.3% each. However, only 1.4% transmission was found through the lead-based apron. Overall, the radiation transmitted through the lead-based apron was 1/3 transmission of lead-free at 80kVp, and half value of lead-free aprons at 100 and 120 kVp. Conclusion: Even though lead-based and lead-free aprons all claimed to have the same lead equivalent thickness, the transmission might not be the same. The precaution was needed to exercise diligence in quality assurance program to assure adequate protection to staff who wear it during diagnostic procedures. The requirement for aprons not only should be in certain thickness to meet state regulation but also to keep reasonably achievable low exposure with the accurate labeling from manufacturers.

  13. THE EVOLUTION OF PLASMA PARAMETERS ON A CORONAL SOURCE SURFACE AT 2.3 R{sub Sun} DURING SOLAR MINIMUM

    SciTech Connect (OSTI)

    Strachan, L.; Panasyuk, A. V.; Kohl, J. L.; Lamy, P.

    2012-01-20

    We analyze data from the Solar and Heliospheric Observatory to produce global maps of coronal outflow velocities and densities in the regions where the solar wind is undergoing acceleration. The maps use UV and white light coronal data obtained from the Ultraviolet Coronagraph Spectrometer and the Large Angle Spectroscopic Coronagraph, respectively, and a Doppler dimming analysis to determine the mean outflow velocities. The outflow velocities are defined on a sphere at 2.3 R{sub Sun} from Sun-center and are organized by Carrington Rotations during the solar minimum period at the start of solar cycle 23. We use the outflow velocity and density maps to show that while the solar minimum corona is relatively stable during its early stages, the shrinkage of the north polar hole in the later stages leads to changes in both the global areal expansion of the coronal hole and the derived internal flux tube expansion factors of the solar wind. The polar hole areal expansion factor and the flux tube expansion factors (between the coronal base and 2.3 R{sub Sun }) start out as super-radial but then they become more nearly radial as the corona progresses away from solar minimum. The results also support the idea that the largest flux tube expansion factors are located near the coronal hole/streamer interface, at least during the deepest part of the solar minimum period.

  14. The Process of Fixing the British National Minimum Wage, 1997-2007

    E-Print Network [OSTI]

    Brown, William

    Minimum Wage, 1997-2007 William Brown Abstract The British National Minimum Wage was introduced in 1999 under the guidance of a Low Pay Commission constructed on a basis of ‘social partnership’. The paper analyses its conduct over its first... in The British Journal of Industrial Relations during 2009 All enquiries to William Brown, (william.brown@econ.cam.ac.uk), Faculty of Economics, Cambridge University 2 The Process of Fixing the British National Minimum Wage, 1997...

  15. Transmission resonance spectroscopy in the third minimum of 232Pa

    E-Print Network [OSTI]

    L. Csige; M. Csatlos; T. Faestermann; J. Gulyas; D. Habs; R. Hertenberger; M. Hunyadi; A. Krasznahorkay; H. J. Maier; P. G. Thirolf; H. -F. Wirth

    2012-04-04

    The fission probability of 232Pa was measured as a function of the excitation energy in order to search for hyperdeformed (HD) transmission resonances using the (d,pf) transfer reaction on a radioactive 231Pa target. The experiment was performed at the Tandem accelerator of the Maier-Leibnitz Laboratory (MLL) at Garching using the 231Pa(d,pf) reaction at a bombarding energy of E=12 MeV and with an energy resolution of dE=5.5 keV. Two groups of transmission resonances have been observed at excitation energies of E=5.7 and 5.9 MeV. The fine structure of the resonance group at E=5.7 MeV could be interpreted as overlapping rotational bands with a rotational parameter characteristic to a HD nuclear shape. The fission barrier parameters of 232Pa have been determined by fitting TALYS 1.2 nuclear reaction code calculations to the overall structure of the fission probability. From the average level spacing of the J=4 states, the excitation energy of the ground state of the 3rd minimum has been deduced to be E(III)=5.05 MeV.

  16. Optimal Design and Allocation of Electrified Vehicles and Dedicated Charging Infrastructure for Minimum Greenhouse Gas Emissions

    E-Print Network [OSTI]

    Michalek, Jeremy J.

    for Minimum Greenhouse Gas Emissions Submitted for Presentation at the 2011 Annual Meeting to reduce greenhouse gas (GHG) emissions from personal transportation by shifting energy demand from

  17. IDAPA 37.03.03 - Rules and Minimum Standards for the Construction...

    Open Energy Info (EERE)

    03 - Rules and Minimum Standards for the Construction and Use of Injection Wells Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document-...

  18. Minimum Energy per Bit for Gaussian Broadcast Channels with Common Message and Cooperating

    E-Print Network [OSTI]

    Verdú, Sergio

    by the Office of Naval Research under contract numbers W911NF-07-1-0185 and N00014-07-1-0555. The minimum energy

  19. Measurement of the charged-hadron spectra and nuclear modification factor in lead-lead collisions with the ATLAS detector

    E-Print Network [OSTI]

    Balek, Petr; The ATLAS collaboration

    2015-01-01

    The ATLAS experiment at the Large Hadron Collider (LHC) measures charged hadron spectra obtained in 2010 and 2011 lead-lead LHC data taking periods with total integrated statistics of 0.15nb${}^{-1}$. The results are compared to the pp spectra of charged hadrons at the same centre-of-mass energy based on the data sample with integrated luminosity of 4.2pb${}^{-1}$ obtained by the ATLAS experiment in 2011 and 2013. These allows for a detailed comparison of the two collision systems in a wide transverse momentum ($0.5 < p_\\mathrm{T} < 150$GeV) and pseudorapidity ($|\\eta|<2$) ranges in different centrality intervals of Pb+Pb collision. The nuclear modification factor $R_\\mathrm{AA}$ is presented in detail as a function of centrality, $p_\\mathrm{T}$ and $\\eta$. It shows a distinct $p_\\mathrm{T}$-dependence with a pronounced minimum at about 7GeV. Above 60GeV, it is consistent with a flat, centrality-dependent, value within the uncertainties. The value is $0.55\\pm0.01(stat.)\\pm0.04(syst.)$ in the most cen...

  20. Measurement of the charged hadron spectra and nuclear modification factor in lead-lead collisions with the ATLAS detector

    E-Print Network [OSTI]

    Balek, Petr; The ATLAS collaboration

    2015-01-01

    The ATLAS experiment at the Large Hadron Collider (LHC) measures charged hadron spectra obtained in 2010-2011 lead-lead LHC data taking periods with total integrated statistics of 0.15 nb${}^{-1}$. The results are compared to the pp spectra of charged hadrons at the same centre-of-mass energy based on the data sample with integrated luminosity of 4 pb${}^{-1}$ obtained by the ATLAS experiment in 2013. These allows for a detailed comparison of the two collision systems in a wide transverse momentum ($0.5< p_\\mathrm{T}<150$ GeV) and pseudorapidity ($|\\eta|<2$) ranges in different centrality intervals of Pb+Pb collision. The nuclear modification factors $R_\\mathrm{AA}$ and $R_\\mathrm{CP}$ are presented in detail as a function of centrality, $p_\\mathrm{T}$ and $\\eta$. They show a distinct $p_\\mathrm{T}$-dependence with a pronounced minimum at about 7GeV. Above 60GeV, $R_\\mathrm{AA}$ is consistent with a flat, centrality-dependent, value within the uncertainties. The value is 0.55±0.01(stat.)±0.04(syst....

  1. Characterization of phase evolution during lead immobilization by synthetic hydroxyapatite

    SciTech Connect (OSTI)

    Mavropoulos, Elena [CBPF, Rio de Janeiro (Brazil); Rocha, Nilce C.C. [IQ/UFRJ, Rio de Janeiro (Brazil); Moreira, Josino C. [ENSP/FIOCRUZ, Rio de Janeiro (Brazil); Rossi, Alexandre M. [CBPF, Rio de Janeiro (Brazil); Soares, Gloria A. [Metallurgical and Materials Engineering Department, Federal University of Rio de Janeiro, P.O. Box 68505, Rio de Janeiro, 21941-972, RJ (Brazil)]. E-mail: Gloria@ufrj.br

    2004-09-15

    Immobilization of toxic metals by calcium phosphates is a promising technology for treating contaminated soil, water and wastes. A detailed study on the mechanisms of lead immobilization by hydroxyapatite has been carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). For this, synthetic hydroxyapatite powder were submitted to a sorption process through exposure to an aqueous solution containing 917 mg L{sup -1} of lead for times that varied from 3 min to 54 h. The results obtained reinforce the hypothesis that hydroxypyromorphite formation is the end of a kinetic process in which the hydroxyapatite crystals are continuously dissolved and recrystallized in order to form more stable structures with higher lead content. Consequently, the use of calcium phosphates to immobilize lead ions seems to be technically viable.

  2. Lead Exposure Alters the Development of Agonistic

    E-Print Network [OSTI]

    Delville, Yvon

    Lead Exposure Alters the Development of Agonistic Behavior in Golden Hamsters M. Catalina Cervantes@mail.utexas.edu ABSTRACT: We tested the effects of exposure to different doses of lead acetate (either 0, 25, 100, or 400-specific effect of lead exposure on the development of aggression during puberty at doses resulting in blood

  3. LEAD COMMISSIONER REPORT RENEWABLE POWER IN

    E-Print Network [OSTI]

    LEAD COMMISSIONER REPORT RENEWABLE POWER IN CALIFORNIA: STATUS AND ISSUES DECEMBER 2011 CEC1502011002LCFREV1 #12;CALIFORNIA ENERGY COMMISSION 2011 INTEGRATED ENERGY POLICY REPORT LEAD COMMISSIONER of the 2011 Integrated Energy Policy Report Lead Commissioner. It does not necessarily represent the views

  4. ELLIPSOMETRY OF SULFATE FILMS ON LEAD

    E-Print Network [OSTI]

    Muller, R. H.

    2011-01-01

    Of SUlfATE fILMS ON LEAD R. H. Muller R. D. Peters May 1979be due to changes on the lead surface (instead of in theELLIPSOMETRY OF SULFATE FILMS ON LEAD R. H. Muller and R. D.

  5. Safety Policy LEAD IN PAINT POLICY

    E-Print Network [OSTI]

    Powers, Robert

    Safety Policy (10/96) LEAD IN PAINT POLICY://ehs.unl.edu/) Purpose: Lead is a recognized health hazard, and consequently, regulations have been developed to assure protection from excessive exposure to lead. Paints and coatings manufactured prior to 1978 often contained

  6. LEAD at Unidata Status Update, October 2009

    E-Print Network [OSTI]

    LEAD at Unidata Status Update, October 2009 Mohan Ramamurthy The official period of performance for the LEAD project ended on 30 September 2009 after a one-year the no-cost extension period. The six year ITR computing and networking to huge data sets, human decision making and complex virtual organizations ­ LEAD

  7. Appendix C.1 THE LEAD LABORATORY

    E-Print Network [OSTI]

    Appendix C.1 THE LEAD LABORATORY By PATRICK J. PARSONS, Ph.D.1 J. JULIAN CHISOLM, JR., M.D.2 Role of the Laboratory Laboratories measure lead concentrations in either clinical samples between the clinical and environmental lead laboratories and the issues that they face. Often

  8. Leading the Way Leading the WayUniversity of Colorado Catalog

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Leading the Way Leading the WayUniversity of Colorado Catalog Leading the Way Boulder 2002­03 #12 children in the village of San Pablo, Belize, don't haul water up a steep hill in buckets anymore because

  9. Solar wind turbulence at 0.72 AU and solar minimum

    E-Print Network [OSTI]

    Teodorescu, Eliza; Munteanu, Costel; Zhang, Tielong; Bruno, Roberto; Kovacs, Peter

    2015-01-01

    We investigate Venus Express (VEX) observations of magnetic field fluctuations performed systematically in the solar wind at 0.72 Astronomical Units (AU), between 2007 and 2009, during the deep minimum of the solar cycle 24. The Power Spectral Densities (PSD) of the magnetic field components have been computed for the time intervals that satisfy data integrity criteria and have been grouped according to the type of wind, fast and slow defined for speeds larger and respectively smaller than 450 km/s. The PSDs show higher levels of power for the fast than for the slow wind. The spectral slopes estimated for all PSDs in the frequency range 0.005-0.1 Hz exhibit a normal distribution. The average value of the trace of the spectral matrix is -1.60 for fast solar wind and -1.65 for slow wind. Compared to the corresponding average slopes at 1 AU, the PSDs are shallower at 0.72 AU for slow wind conditions suggesting a steepening of the solar wind spectra between Venus and Earth. No significant time variation trend is ...

  10. Journal of Environmental Monitoring b903417j Mercury, lead and lead isotope ratios in the teeth of moose

    E-Print Network [OSTI]

    903417j Assessing the effect of recent reductions in atmospheric pollution on metal concentrations that the primary sources of Pb at different times in the moose were combustion of U.S. coal and leaded gasoline. Reductions in emissions from coal combustion might explain the co- incident reductions of Hg and Pb in Isle

  11. Cluster formation probability in the trans-tin and trans-lead nuclei

    E-Print Network [OSTI]

    K. P. Santhosh; R. K. Biju; Sabina Sahadevan

    2010-05-10

    Within our fission model, the Coulomb and proximity potential model (CPPM) cluster formation probabilities are calculated for different clusters ranging from carbon to silicon for the parents in the trans-tin and trans- lead regions. It is found that in trans-tin region the 12^C, 16^O, 20^Ne and 24^Mg clusters have maximum cluster formation probability and lowest half lives as compared to other clusters. In trans-lead region the 14^C, 18, 20^O, 23^F, 24,26^Ne, 28,30^Mg and 34^Si clusters have the maximum cluster formation probability and minimum half life, which show that alpha like clusters are most probable for emission from trans-tin region while non-alpha clusters are probable from trans-lead region. These results stress the role of neutron proton symmetry and asymmetry of daughter nuclei in these two cases.

  12. Cooperative Repair with Minimum-Storage Regenerating Codes for Distributed Storage

    E-Print Network [OSTI]

    Li, Baochun

    Cooperative Repair with Minimum-Storage Regenerating Codes for Distributed Storage Jun Li, Baochun--Distributed storage systems store redundant data to tolerate failures of storage nodes and lost data should be repaired when storage nodes fail. A class of MDS codes, called minimum- storage regenerating (MSR) codes

  13. Minimum Duration Outages in Rayleigh Fading Channels Jie Lai and Narayan B. Mandayam

    E-Print Network [OSTI]

    Mandayam, Narayan

    Minimum Duration Outages in Rayleigh Fading Channels Jie Lai and Narayan B. Mandayam WINLAB@winlab.rutgers.edu Abstract Minimum duration outages have been introduced in [1, 2] for lognormal shadow fading where the durations of signal fades were considered in evaluating outages. In this pa­ per we develop and analyze

  14. A simple model for evolution of proteins towards the global minimum of free energy

    E-Print Network [OSTI]

    Unger, Ron

    in a simple model of protein folding. Results: Three possible evolutionary processes are explored. First can be achieved. The assumption that proteins fold to a conformation which is in the global minimum sequences that can find the global minimum [5]. In computer science terms this means that `protein folding

  15. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 1 Enforcing Minimum-Cost Multicast Routing

    E-Print Network [OSTI]

    Li, Zongpeng

    . Index Terms-- Communication/Networking, Multicast, Graph Algorithms. I. INTRODUCTION THE classic min-costIEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 1 Enforcing Minimum-Cost Multicast Routing point incurring minimum total edge cost, through appropriate cost allocation and other economic measures

  16. Minimum-Energy Cooperative Routing in Wireless Networks with Channel Variations

    E-Print Network [OSTI]

    Ghaderi, Majid

    Minimum-Energy Cooperative Routing in Wireless Networks with Channel Variations Mostafa Dehghan as well. Index Terms Cooperative communication, minimum energy routing, variable wireless channels@ucalgary.ca #12;1 I. INTRODUCTION Energy efficient communication is a fundamental problem in wireless networks

  17. Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games on Rooted

    E-Print Network [OSTI]

    RIMS-1674 Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games Allocation Games on Rooted Trees Kazutoshi Ando and Shinji Kato June 2009 Abstract A minimum cost spanning tree game is called ultrametric if the cost function on the edges of the underlying network

  18. Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games on Rooted

    E-Print Network [OSTI]

    RIMS­1674 Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games Allocation Games on Rooted Trees Kazutoshi Ando # and Shinji Kato + June 2009 Abstract A minimum cost spanning tree game is called ultrametric if the cost function on the edges of the underlying network

  19. Dynamic On-the-Fly Minimum Cost Benchmarking for Storing Generated Scientific

    E-Print Network [OSTI]

    Yang, Yun

    IEEEProof Dynamic On-the-Fly Minimum Cost Benchmarking for Storing Generated Scientific Datasets some generated datasets to save the storage cost but more computation cost is incurred for regeneration with efficient algorithms for dynamic yet practical on-the-fly minimum cost benchmarking of storing generated

  20. ITP Steel: Theoretical Minimum Energies to Produce Steel for Selected Conditions, March 2000

    Broader source: Energy.gov [DOE]

    The absolute theoretical minimum energies to produce liquid steel from idealized scrap (100% Fe) and ore (100% Fe2O3) are much lower than consumed in practice, as are the theoretical minimum energies to roll the steel into its final shape.

  1. Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths

    E-Print Network [OSTI]

    Skeel, Robert

    Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths corrected.S.A. Abstract The calculation of a minimum free energy path can be considered as a two-point boundary value box solvers. The second paragraph of Section 1 is corrected. Because free energy is defined in terms

  2. MATH MINOR REQUIREMENTS Minimum units required: 18 (2012-2014 catalogs)

    E-Print Network [OSTI]

    Fatkullin, Ibrahim

    MATH MINOR REQUIREMENTS Minimum units required: 18 (2012-2014 catalogs) (at least 3 units must be completed at UA) Minimum minor GPA: 2.00 Course Work Requirements: · Complete both: o MATH 122A/B or 125: Calculus I o MATH 129: Calculus II · Choose two courses from: o MATH 313: Introduction to Linear Algebra

  3. Sandia and UNM lead effort to destroy cancers | e! Science News http://esciencenews.com/articles/2011/04/18/sandia.and.unm.lead.effort.destroy.cancers[4/21/2011 11:34:04 AM

    E-Print Network [OSTI]

    Brinker, C. Jeffrey

    Sandia and UNM lead effort to destroy cancers | e! Science News http://esciencenews.com/articles/2011/04/18/sandia.and.unm.lead.effort.destroy.cancers[4/21/2011 11:34:04 AM] Sandia and UNM lead effort and targeting efficacy of protocells leads to many times greater cytotoxicity [destruction] directed

  4. Sandia and UNM lead effort to destroy cancers | Science Codex http://www.sciencecodex.com/sandia_and_unm_lead_effort_to_destroy_cancers[5/2/2011 12:12:49 PM

    E-Print Network [OSTI]

    Brinker, C. Jeffrey

    Sandia and UNM lead effort to destroy cancers | Science Codex http://www.sciencecodex.com/sandia_and_unm_lead_effort_to_destroy_cancers[5/2/2011 12:12:49 PM] RSS Feeds » Home Earth Heavens Body Brain Culture Tech Sandia and UNM lead and targeting efficacy of protocells leads to many times greater cytotoxicity [destruction] directed

  5. A liquid-helium-free superconducting coil system forming a flat minimum-magnetic-field distribution of an electron cyclotron resonance ion source

    SciTech Connect (OSTI)

    Yoshida, Ken-ichi, E-mail: yoshida.kennichi71@jaea.go.jp; Nara, Takayuki; Saitoh, Yuichi; Yokota, Watalu [Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan)] [Takasaki Advanced Radiation Research Institute, Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan)

    2014-02-15

    A flat distribution of the minimum magnetic field (flat-B{sub min}) of an electron cyclotron resonance ion source (ECRIS) is expected to perform better in highly charged ion production than classical B{sub min}. To form a flat-B{sub min} structure with a liquid helium-free superconducting device, a coil system of seven coils with four current leads has been designed. The lead number was reduced by connecting the plural coils in series to maintain the flat-B{sub min} structure even when the coil currents are changed for adjustment. This coil system can be operated with a helium-free cryostat, since the estimation of heat from the leads to the coils is nearly equivalent to the existing superconducting ECRIS of a similar type.

  6. New experimental limits on the alpha decays of lead isotopes

    E-Print Network [OSTI]

    J. W. Beeman; F. Bellini; L. Cardani; N. Casali; S. Di Domizio; E. Fiorini; L. Gironi; S. S. Nagorny; S. Nisi; F. Orio; L. Pattavina; G. Pessina; G. Piperno; S. Pirro; E. Previtali; C. Rusconi; C. Tomei; M. Vignati

    2012-12-12

    For the first time a PbWO4 crystal was grown using ancient Roman lead and it was run as a cryogenic detector. Thanks to the simultaneous and independent read-out of heat and scintillation light, the detector was able to discriminate beta/gamma interactions with respect to alpha particles down to low energies. New more stringent limits on the alpha decays of the lead isotopes are presented. In particular a limit of T_{1/2} > 1.4*10^20 y at a 90% C.L. was evaluated for the alpha decay of 204Pb to 200Hg.

  7. Quality Support G. Q. Kirk, Lead (4)

    E-Print Network [OSTI]

    Quality Support G. Q. Kirk, Lead (4) R. L. Bullock (4) A. C. Hendricks (4) G. H. Henkel (4) D. L. Ramsey B. F. Siefken Electrical/I&C D. S. Wilder, Lead D. S. Asquith (5) B. L. Coday B. P. Ducamp C. D Technology J. K. Keith, Jr., Lead J. L. Anderson (8) M. B. Anderson (5) C. F. Guyett (8) S. N. Hammonds

  8. Pulmonary and gastric lead burden assessment for lead-recycling plant , J.J Sauvain2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Pulmonary and gastric lead burden assessment for lead-recycling plant workers Uzu, G.1 , J Chimiques des Métaux, 30 Avenue de Fondeyre 31200 Toulouse, France Key words: bioaccessibility, DTT, lead) and origin (furnace, refining and channeled emissions), lead toxicity and bioaccessibility assessment were

  9. Lead(ii) Detection An Exceptionally Selective Lead(ii)-Regulatory

    E-Print Network [OSTI]

    He, Chuan

    Lead(ii) Detection An Exceptionally Selective Lead(ii)-Regulatory Protein from Ralstonia Metallidurans: Development of a Fluorescent Lead(ii) Probe** Peng Chen, Bill Greenberg, Safiyh Taghavi, Christine Romano, Daniel van der Lelie, and Chuan He* Lead contamination is a serious threat to human health

  10. Identification of sources of lead exposure in French children by lead isotope analysis: a cross-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Identification of sources of lead exposure in French children by lead isotope analysis: a cross://www.ehjournal.net/content/10/1/75 (28 August 2011) #12;RESEARCH Open Access Identification of sources of lead exposure in French children by lead isotope analysis: a cross- sectional study Youssef Oulhote1,2,3* , Barbara Le Bot

  11. Compatibility of PETN with lead azide

    SciTech Connect (OSTI)

    Hurd, R.; Fronabarger, J.W.; Johnson, R.; Fleming, W.

    1983-01-01

    The compatibility of PETN with lead azide at elevated temperatures has been investigated. Ramped and isothermal DSC methods were used to obtain energies of activation at temperatures above the melting point of PETN. Mixtures were found to show exothermic activity at lower temperatures than pure PETN. High Pressure Liquid Chromatography was used to follow the decomposition of PETN and PETN/lead azide mixtures at temperatures below the melting point. Reaction below 120/sup 0/C appeared minimal, while at higher temperatures, both PETN and PETN/lead azide mixtures showed degradation. A PETN/lead azide sample exploded at or near the melting point of PETN.

  12. Thermal conductivity of bulk nanostructured lead telluride

    E-Print Network [OSTI]

    Hori, Takuma

    Thermal conductivity of lead telluride with embedded nanoinclusions was studied using Monte Carlo simulations with intrinsic phonon transport properties obtained from first-principles-based lattice dynamics. The ...

  13. LEAD SUBSTITUTION AND ELIMINATION STUDY, PART II

    SciTech Connect (OSTI)

    T. MARTINEZ; M. COURNOYER

    2001-01-01

    Within the Nuclear Materials Technology Division of Los Alamos National Laboratory, lead is used as shielding for a variety of operations, including actinide chemistry, weapons production, radiochemistry, and analytical chemistry. In this study, waste minimization issues associated with replacing lead shielding with non-hazardous materials are addressed. These include institutional program available to support this effort, the hazards and accompanying controls grouped with lead shielding, operations that use lead bricks and how this effects the selection of the substitute. Life cycle management issues are also examined. As a final step, an approach to get buy-in from both technical and budget minded employees is presented.

  14. Electrical Engineer (Power Electronics, Lead Engineer) | Princeton...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Engineer (Power Electronics, Lead Engineer) Department: Engineering Supervisor(s): Albert von Halle Requisition Number: 1500733 The Princeton University Plasma Physics Laboratory...

  15. Downregulation of Cinnamyl Alcohol Dehydrogenase (CAD) Leads...

    Office of Scientific and Technical Information (OSTI)

    of Cinnamyl Alcohol Dehydrogenase (CAD) Leads to Improved Saccharification Efficiency in Switchgrass Citation Details In-Document Search Title: Downregulation of Cinnamyl...

  16. INVESTIGATIONS ON THE USE OF ANODIC STRIPPING VOLTAMMETRY FOR THE ANALYSES OF LEAD IN SALINE ENVIRONMENTS

    E-Print Network [OSTI]

    Case, Charles W.

    2011-01-01

    A - Lead Data . . . . . . . . . . . . . . . . . . . . .10 Lead ..of Lead . . . . . . . . . . . . . . . . . . . . . 119 -2ce

  17. Isotopic generator for bismuth-212 and lead-212 from radium

    DOE Patents [OSTI]

    Atcher, Robert W. (Kensington, MD); Friedman, Arnold M. (Park Forest, IL); Hines, John (Glen Ellyn, IL)

    1987-01-01

    A method and apparatus for providing radionuclides of bismuth-212 and lead-212. Thorium-228 and carrier solution starting material is input to a radiologically contained portion of an isotopic generator system, and radium-224 is separated from thorium-228 which is retained by a strongly basic anion exchange column. The separated radium-224 is transferred to an accessible, strongly acidic cationic exchange column. The cationic column retains the radium-224, and natural radioactive decay generates bismuth-212 and lead-212. The cationic exchange column can also be separated from the contained portion of the system and utilized without the extraordinary safety measures necessary in the contained portion. Furthermore, the cationic exchange column provides over a relatively long time period the short lived lead-212 and bismuth-212 radionuclides which are useful for a variety of medical therapies.

  18. Level of Repair Analysis and Minimum Cost Homomorphisms of Graphs

    E-Print Network [OSTI]

    Gutin, Gregory

    of Lillian Barros Abstract. Level of Repair Analysis (LORA) is a prescribed procedure for defence logistics, LORA seeks to determine an optimal provision of repair and maintenance facilities to minimize overall on bipartite graphs is polynomial time solvable. Keywords: Computational Logistics; Level of Repair Analysis

  19. Ballistic spin-dependent transport of Rashba rings with multi-leads

    SciTech Connect (OSTI)

    Huang Guangyao [State Key Laboratory of Optoelectronic Material and Technology and School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275 (China); Liang Shidong, E-mail: stslsd@mail.sysu.edu.cn [State Key Laboratory of Optoelectronic Material and Technology and School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275 (China)

    2011-05-15

    Research Highlights: > Transmission coefficients of each outgoing lead in multi-lead mesoscopic Rashba rings. > Spin polarizations of each outgoing lead in multi-lead mesoscopic Rashba rings. > Resonant and antiresonant conditions of spin polarization in multi-lead Rashba rings. > Symmetries of conductance and spin polarization of symmetric multi-lead Rashba rings. - Abstract: Using the Landauer-Buettiker formula with the transfer matrix technique, we develop a formalism of the ballistic spin-dependent electron transport in the multi-lead Rashba rings. We give analytic formulas of the total conductance G{sub j}, spin-{sigma} conductance g{sub j}{sup {sigma}} and spin polarization P{sub j} of each outgoing lead j, and their resonant and antiresonant conditions. Analytic studying with numerical investigating Rashba rings with several symmetric and asymmetric leads, we find that G{sub j}, g{sub j}{sup {sigma}} and P{sub j} oscillate with the incoming electron energy and the spin-orbit interaction (SOI) strength, and their antiresonances depend on the incoming electron energy, the SOI strength and the outgoing-lead angle with the incoming lead. For the symmetric-lead rings, G{sub j}, g{sub j}{sup {sigma}} and P{sub j} have some symmetries, G{sub j}=G{sub N-j},g{sub j}{sup {sigma}}=g{sub N-j}{sup -{sigma}}, and P{sub j} = -P{sub N-j} for symmetric leads, j and N - j, where the angles between the symmetric outgoing leads j and N - j and the incoming lead are {gamma}{sub N-j} = 2{pi} - {gamma}{sub j}. The spin polarization of the outgoing lead with {gamma}{sub j} = {pi} is exactly zero for even-N-symmetric-lead rings. These symmetries originate from the lead symmetry and time reversal invariance. For asymmetry-lead rings these symmetries vanish.

  20. The Minimum of Solar Cycle 23: As Deep as It Could Be?

    E-Print Network [OSTI]

    Muñoz-Jaramillo, Andrés; Longcope, Dana W; Tlatov, Andrey G; Pevtsov, Alexei A; Balmaceda, Laura A; DeLuca, Edward E; Martens, Petrus C H

    2015-01-01

    In this work we introduce a new way of binning sunspot group data with the purpose of better understanding the impact of the solar cycle on sunspot properties and how this defined the characteristics of the extended minimum of cycle 23. Our approach assumes that the statistical properties of sunspots are completely determined by the strength of the underlying large-scale field and have no additional time dependencies. We use the amplitude of the cycle at any given moment (something we refer to as activity level) as a proxy for the strength of this deep-seated magnetic field. We find that the sunspot size distribution is composed of two populations: one population of groups and active regions and a second population of pores and ephemeral regions. When fits are performed at periods of different activity level, only the statistical properties of the former population, the active regions, is found to vary. Finally, we study the relative contribution of each component (small-scale versus large-scale) to solar mag...

  1. The Minimum Bandwidth of Narrowband Spikes in Solar Flare Decimetric Radio Waves

    E-Print Network [OSTI]

    Peter Messmer; Arnold O. Benz

    1999-12-23

    The minimum and the mean bandwidth of individual narrowband spikes in two events in decimetric radio waves is determined by means of multi-resolution analysis. Spikes of a few tens of millisecond duration occur at decimetric/microwave wavelength in the particle acceleration phase of solar flares. A first method determines the dominant spike bandwidth scale based on their scalegram, the mean squared wavelet coefficient at each frequency scale. This allows to measure the scale bandwidth independently of heuristic spike selection criteria, e.g. manual selection. The major drawback is a low resolution in the bandwidth. To overcome this uncertainty, a feature detection algorithm and a criterion for spike shape in the time-frequency plane is applied to locate the spikes. In that case, the bandwidth is measured by fitting an assumed spike profile into the denoised data. The smallest FWHM bandwidth of spikes was found at 0.17 % and 0.41 % of the center frequency in the two events. Knowing the shortest relevant bandwidth of spikes, the slope of the Fourier power spectrum of this two events was determined and no resemblance to a Kolmogorov spectrum detected. Additionally the correlation between spike peak flux and bandwidth was examined.

  2. Photoproduction at HERA with a Leading Proton

    E-Print Network [OSTI]

    Photoproduction at HERA with a Leading Proton Hanna Mahlke­Kr¨uger H1 Collaboration, DESY Abstract. The total cross­section for the semi­inclusive photoproduction process with a leading proton in the final­sections refer to the kinematic range with transverse momenta of the scattered proton restricted to p T Ÿ 0:2 Ge

  3. Managing lead-based paint abatement wastes

    SciTech Connect (OSTI)

    Steele, N.L.C.

    1994-12-31

    Renovation, remodeling, demolition, and surface preparation for painting, in addition to specified lead abatement, are all activities that have the potential to produce hazardous wastes if a property was painted with lead-based paint. Lead-based paint was used on residential structures until 1978, when most residential uses were banned by the Consumer Products Safety Council. Prior to the 1950s, paints for residential uses may have contained up to 50% lead by weight. Today, commercial and military paints may still contain lead and can be used on non-residential structures. The lead content of residential paints is limited to 0.06% lead (by weight) in the dried film. This paper provides an overview of some of the information needed to properly manage lead-based paint abatement wastes. The issues covered in this paper include waste classification, generator status, treatment, and land disposal restrictions. The author assumes that the reader is familiar with the provision of the Health and Safety Code and the California Code of Regulations that pertain to generation and management of hazardous wastes. Citations provided herein do not constitute an exhaustive list of all the regulations with which a generator of hazardous waste must comply.

  4. Fan-fold shielded electrical leads

    DOE Patents [OSTI]

    Rohatgi, R.R.; Cowan, T.E.

    1996-06-11

    Disclosed are fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figs.

  5. Fan-fold shielded electrical leads

    DOE Patents [OSTI]

    Rohatgi, Rajeev R. (Mountain View, CA); Cowan, Thomas E. (Livermore, CA)

    1996-01-01

    Fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate.

  6. FEDERAL MINIMUM WAGE $7.25BEGINNING JULY 24, 2009

    E-Print Network [OSTI]

    Rock, Chris

    -866-487-9243) TTY: 1-877-889-5627 WWW.WAGEHOUR.DOL.GOV EMPLOYEE RIGHTS UNDER THE FAIR LAbOR STANDARDS AcT THE UNITED STATES DEPARTMENT OF LABOR WAGE AND HOUR DIVISION WHDU.S. Wage and Hour Division U.S. Department of Labor CREDIT ENFORCEMENT ADDITIONAL INFORMATION At least 1½ times your regular rate of pay for all hours worked

  7. A Laser Range Scanner Designed for Minimum Calibration Complexity James Davis, Xing Chen

    E-Print Network [OSTI]

    Stanford University

    A Laser Range Scanner Designed for Minimum Calibration Complexity James Davis, Xing Chen Computer Graphics Lab, Stanford University {jedavis, xcchen}@graphics.stanford.edu Abstract Laser range scanners reduce the costs associated with calibration. 1 Introduction Laser triangulation scanners

  8. Distinguishing mixed quantum states: Minimum-error discrimination versus optimum unambiguous discrimination

    E-Print Network [OSTI]

    Distinguishing mixed quantum states: Minimum-error discrimination versus optimum unambiguous discrimination Ulrike Herzog1, * and János A. Bergou2 1 Institut für Physik, Humboldt-Universität zu Berlin 2004) We consider two different optimized measurement strategies for the discrimination

  9. From Fjords to Open Seas: Ecological Genomics of Expanding Oxygen Minimum Zones (2010 JGI User Meeting)

    ScienceCinema (OSTI)

    Hallam, Steven

    2011-04-26

    Steven Hallam of the University of British Columbia talks "From Fjords to Open Seas: Ecological Genomics of Expanding Oxygen Minimum Zones" on March 24, 2010 at the 5th Annual DOE JGI User Meeting

  10. Fast Algorithms for Regularized Minimum Norm Solutions to Inverse Problems Irina F. Gorodnitsky

    E-Print Network [OSTI]

    Gorodnitsky, Irina

    Fast Algorithms for Regularized Minimum Norm Solutions to Inverse Problems Irina F. Gorodnitsky- tional algorithms for solving regularized inverse problems. The computationaladvantages are obtained. The algorithms imple- ment two common regularizationprocedures, Tikhonov reg- ularization and Truncated Singular

  11. Minimum Cost Path Problem for Plug-in Hybrid Electric Vehicles

    E-Print Network [OSTI]

    Feb 4, 2014 ... Minimum Cost Path Problem for Plug-in Hybrid Electric Vehicles. Okan Arslan ( okan.arslan ***at*** bilkent.edu.tr) Baris Yildiz (baris.yildiz ...

  12. Minimum Energy Consumption in Multicomponent Distillation. 2. Three-Product Petlyuk Arrangements

    E-Print Network [OSTI]

    Skogestad, Sigurd

    of Science and Technology, N-7491 Trondheim, Norway We show that the minimum energy requirement algebraic procedure, via expressions for pinch zone compositions at the connection points as functions

  13. Shape-Memory Transformations of NiTi: Minimum-Energy Pathways...

    Office of Scientific and Technical Information (OSTI)

    Details In-Document Search This content will become publicly available on December 24, 2015 Title: Shape-Memory Transformations of NiTi: Minimum-Energy Pathways between Austenite,...

  14. r-shrink: A Heuristic for Improving Minimum Power Broadcast Trees in Wireless Networks

    E-Print Network [OSTI]

    Arabshahi, Payman

    network with an identified source node, the minimum power broad- cast (MPB) problem in wireless networks to better accommodate the nodes, which have been disconnected from the tree as a result of the shrinkage

  15. Energy Conservation and the Environment - Designing for Cost Savings and Minimum Emissions 

    E-Print Network [OSTI]

    Johnnie, D. H., Jr.; Klooster, H. J.; Nagy, J. F.

    1984-01-01

    AND THE ENVIRONMENT DESIGNING FOR COST SAVINGS AND MINIMUM EMISSIONS Daniel H. Johnnie, Jr. H. J. Klooster John F. Nagy Fluor Engineers, Inc. Advanced Tec'hnology Division Irvine, California ABSTRACT Upgrading existing facilities for is offering technical...

  16. Modifed Minimum Classification Error Learning and Its Application to Neural Networks 

    E-Print Network [OSTI]

    Shimodaira, Hiroshi; Rokui, Jun; Nakai, Mitsuru

    A novel method to improve the generalization performance of the Minimum Classification Error (MCE) / Generalized Probabilistic Descent (GPD) learning is proposed. The MCE/GPD learning proposed by Juang and Katagiri in 1992 ...

  17. The risk of lead toxicity in homes with lead paint hazard

    SciTech Connect (OSTI)

    Schwartz, J.; Levin, R. )

    1991-02-01

    While lead paint has long been known to be a major source of lead poisoning, only a few small epidemiologic studies have attempted to assess directly the relative risk of lead poisoning due to the presence of lead paint. Using data from over 200,000 screening tests of children in the city of Chicago performed between 1976 and 1980, the relative risks can be quantified for children living in a major urban area. Lead paint was found to be a significant predictor of the probability of a child having lead toxicity. As expected, the reduction in leaded gasoline sales during the period reduced mean blood lead levels and increased the percentage of lead toxic children whose toxicity could be attributed to paint lead. Poisson regression models indicated that with the elimination of leaded gasoline, the relative risk of lead toxicity given lead paint exposure was 5.70 (95% CI, 4.13-7.86) during the winter and fall. The relative risk rose to 12.81 (95% CI, 7.33-22.4) in the spring and 15.8 (95% CI, 8.90-28.1) in the summer, probably due to increased exposure to window wells.

  18. 322 / JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING / SEPTEMBER/OCTOBER 2000 COMPREHENSIVE DESIGN OF MINIMUM COST IRRIGATION

    E-Print Network [OSTI]

    Chahar, B. R.

    OF MINIMUM COST IRRIGATION CANAL SECTIONS By Prabhata K. Swamee,1 Govinda C. Mishra,2 and Bhagu R. Chahar3

  19. Introducing Minimum Fisher Regularisation Tomography to Bolometric and Soft X-ray Diagnostic Systems of the COMPASS Tokamak

    E-Print Network [OSTI]

    Introducing Minimum Fisher Regularisation Tomography to Bolometric and Soft X-ray Diagnostic Systems of the COMPASS Tokamak

  20. Method for measuring lead concentrations in blood

    DOE Patents [OSTI]

    Nogar, Nicholas S. (Los Alamos, NM)

    2001-01-01

    Method for measuring lead concentrations in blood. The present invention includes the use of resonant laser ablation to analyze .ltoreq.1 .mu.L (or equivalent mass) samples of blood for lead content. A typical finger prick, for example, yields about 10 .mu.L. Solid samples may also readily be analyzed by resonant laser ablation. The sample is placed on a lead-free, electrically conducting substrate and irradiated with a single, focused laser beam which simultaneously vaporizes, atomizes, and resonantly ionizes an analyte of interest in a sample. The ions are then sorted, collected and detected using a mass spectrometer.

  1. A study of the minimum meniscus radius as a function of vapor temperature using heat pipes 

    E-Print Network [OSTI]

    Sonnier, Ronald James

    1973-01-01

    A STUDY OF THE MINIMUM MENISCUS RADIUS AS A FUNCTION OF VAPOR TEMPERATURE USING HEAT PIPES A Thesis by RONALD JAMES SONNIER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree... MASTER OF SCIENCE May 1973 Major Subject: Mechanical Engineering A STUDY OF THE MINIMUM MENISCUS RADIUS AS A FUNCTION OF VAPOR TEMPERATURE USING HEAT PIPES A Thesis by RONALD JAMES SONNIER Approved as to style and content by: Chairman C ittee...

  2. Corrosion by liquid lead and lead-bismuth: experimental results review and analysis

    SciTech Connect (OSTI)

    Zhang, Jinsuo

    2008-01-01

    Liquid metal technologies for liquid lead and lead-bismuth alloy are under wide investigation and development for advanced nuclear energy systems and waste transmutation systems. Material corrosion is one of the main issues studied a lot recently in the development of the liquid metal technology. This study reviews corrosion by liquid lead and lead bismuth, including the corrosion mechanisms, corrosion inhibitor and the formation of the protective oxide layer. The available experimental data are analyzed by using a corrosion model in which the oxidation and scale removal are coupled. Based on the model, long-term behaviors of steels in liquid lead and lead-bismuth are predictable. This report provides information for the selection of structural materials for typical nuclear reactor coolant systems when selecting liquid lead or lead bismuth as heat transfer media.

  3. Measurement of the production of neighbouring jets in lead-lead...

    Office of Scientific and Technical Information (OSTI)

    Measurement of the production of neighbouring jets in lead-lead collisions at sNN2.76 TeV with the ATLAS detector Citation Details In-Document Search Title: Measurement of the...

  4. Time encoded radiation imaging

    DOE Patents [OSTI]

    Marleau, Peter; Brubaker, Erik; Kiff, Scott

    2014-10-21

    The various technologies presented herein relate to detecting nuclear material at a large stand-off distance. An imaging system is presented which can detect nuclear material by utilizing time encoded imaging relating to maximum and minimum radiation particle counts rates. The imaging system is integrated with a data acquisition system that can utilize variations in photon pulse shape to discriminate between neutron and gamma-ray interactions. Modulation in the detected neutron count rates as a function of the angular orientation of the detector due to attenuation of neighboring detectors is utilized to reconstruct the neutron source distribution over 360 degrees around the imaging system. Neutrons (e.g., fast neutrons) and/or gamma-rays are incident upon scintillation material in the imager, the photons generated by the scintillation material are converted to electrical energy from which the respective neutrons/gamma rays can be determined and, accordingly, a direction to, and the location of, a radiation source identified.

  5. On-the-fly string method for minimum free energy paths calculation Luca Maragliano *, Eric Vanden-Eijnden 1

    E-Print Network [OSTI]

    Van Den Eijnden, Eric

    On-the-fly string method for minimum free energy paths calculation Luca Maragliano *, Eric Vanden and simplified version of the string method in collective variables for computing minimum free energy paths) the minimum free energy path (MFEP) plays an important role. Given a set of collective variables to describe

  6. Electron transport in lead selenide nanocrystal arrays

    E-Print Network [OSTI]

    Schriver, Maria C

    2005-01-01

    I have investigated electrical properties of arrays of lead selenide (PbSe) nanocrystals (NC's) of approximately 6nm diameter. The films become substantially more conducting when annealed at 400K, although no chemical ...

  7. Lightweight, durable lead-acid batteries

    DOE Patents [OSTI]

    Lara-Curzio, Edgar (Lenoir City, TN); An, Ke (Knoxville, TX); Kiggans, Jr., James O. (Oak Ridge, TN); Dudney, Nancy J. (Knoxville, TN); Contescu, Cristian I. (Knoxville, TN); Baker, Frederick S. (Oak Ridge, TN); Armstrong, Beth L. (Clinton, TN)

    2011-09-13

    A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

  8. Lightweight, durable lead-acid batteries

    DOE Patents [OSTI]

    Lara-Curzio, Edgar; An, Ke; Kiggans, Jr., James O; Dudney, Nancy J; Contescu, Cristian I; Baker, Frederick S; Armstrong, Beth L

    2013-05-21

    A lightweight, durable lead-acid battery is disclosed. Alternative electrode materials and configurations are used to reduce weight, to increase material utilization and to extend service life. The electrode can include a current collector having a buffer layer in contact with the current collector and an electrochemically active material in contact with the buffer layer. In one form, the buffer layer includes a carbide, and the current collector includes carbon fibers having the buffer layer. The buffer layer can include a carbide and/or a noble metal selected from of gold, silver, tantalum, platinum, palladium and rhodium. When the electrode is to be used in a lead-acid battery, the electrochemically active material is selected from metallic lead (for a negative electrode) or lead peroxide (for a positive electrode).

  9. Level and length of cyclic solar activity during the Maunder minimum as deduced from the active day statistics

    E-Print Network [OSTI]

    Vaquero, J M; Usoskin, I G; Carrasco, V M S; Gallego, M C

    2015-01-01

    The Maunder minimum (MM) of greatly reduced solar activity took place in 1645-1715, but the exact level of sunspot activity is uncertain as based, to a large extent, on historical generic statements of the absence of spots on the Sun. Here we aim, using a conservative approach, to assess the level and length of solar cycle during the Maunder minimum, on the basis of direct historical records by astronomers of that time. A database of the active and inactive days (days with and without recorded sunspots on the solar disc respectively) is constructed for three models of different levels of conservatism (loose ML, optimum MO and strict MS models) regarding generic no-spot records. We have used the active day fraction to estimate the group sunspot number during the MM. A clear cyclic variability is found throughout the MM with peaks at around 1655--1657, 1675, 1684 and 1705, and possibly 1666, with the active day fraction not exceeding 0.2, 0.3 or 0.4 during the core MM, for the three models. Estimated sunspot nu...

  10. Primer on lead-acid storage batteries

    SciTech Connect (OSTI)

    1995-09-01

    This handbook was developed to help DOE facility contractors prevent accidents caused during operation and maintenance of lead-acid storage batteries. Major types of lead-acid storage batteries are discussed as well as their operation, application, selection, maintenance, and disposal (storage, transportation, as well). Safety hazards and precautions are discussed in the section on battery maintenance. References to industry standards are included for selection, maintenance, and disposal.

  11. Methods for measuring lead concentrations in paint films

    SciTech Connect (OSTI)

    McKnight, M.E.; Byrd, W.E.; Roberts, W.E.; Lagergren, E.S.

    1989-12-01

    Recent legislation required the U.S. Department of Housing and Urban Development (HUD) to establish procedures to abate lead-based paint in existing HUD-assisted housing. The legislation also required HUD to assess the accuracy, precision, reliability, and safety of methods for measuring lead content of paint films and to investigate the availability of testers and samplers. The National Institute of Standards and Technology was requested to carry out the assessment. With regard to accuracy and precision of field measurements, it was concluded that: chemical spot tests when carried out by an experienced analytical chemistry technician can detect the presence of lead in paint films having concentrations in excess of 1 mg/sq cm about 90% of the time; the estimate of the precision of a field measurement procedure using lead-specific portable X-ray fluorescence (XRF) analyzers for lead concentrations near 1 mg/sq cm is + or - 0.6 mg/sq cm and the estimate of the bias is 0.2 mg/sq cm; this results in a 95% confidence interval of + or - 1.4 mg/sq cm; and based upon very preliminary measurements using the latest version of the spectrum analyzer portable XRF, the 95% confidence interval for field measurements is estimated to be + or - 0.5 mg/sq cm. In addition to field methods, standard laboratory procedures can be used to measure the lead content of paint samples to within a few percent of the quantity present over a wide range extending from less than 0.1 to over 10 mg/sq cm. Sample collection and sample dissolution procedures were also investigated.

  12. Achieving dust lead clearance standards after lead hazard control projects: An evaluation of the HUD-recommended cleaning procedure and an abbreviated alternative

    SciTech Connect (OSTI)

    Dixon, S. ); Tohn, E. ); Rupp, R. ); Clark, S. . Dept. of Environmental Health)

    1999-05-01

    The US Department of Housing and Urban Development's (HUD's) Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing strongly recommend that after lead hazard control interventions all walls, ceiling, floors, and other horizontal surfaces be cleaned using a three-step process to reduce lead-contaminated dust and debris. The three steps are: an initial vacuuming using a machine equipped with a high-efficiency particulate air (HEPA) filter (HEPA vacuum), wet wash with a lead cleaner, and a final HEPA vacuum. This study evaluated the effectiveness of two cleaning protocols: (1) the HUD-recommended three-step procedure, and (2) an abbreviated two-step cleaning procedure that omits the final HEPA vacuum. Cleaning procedures were evaluated in 27 dwelling units that had undergone significant lead hazard control interventions likely to produce lead dust. Dust lead samples were collected on floors and in window sills and troughs prior to the lead control hazard intervention, after the wet wash step of the cleaning procedure, and after completion of the second HEPA vacuuming. The results of the study demonstrate that dust lead surface loading on smooth and cleanable surfaces following the three-step and two-step cleaning procedures can achieve 1995 federal guidance dust clearance levels and levels substantially lower. Although the dust lead clearance rates before and after the second HEPA vacuum were the same, the time saved by omitting the second HEPA is small relative to the other elements of the cleaning process.

  13. LEAD COMMISSIONER DRAFT GUIDEBOOK NEW SOLAR HOMES PARTNERSHIP

    E-Print Network [OSTI]

    LEAD COMMISSIONER DRAFT GUIDEBOOK NEW SOLAR HOMES PARTNERSHIP GUIDEBOOK Seventh Edition Lead COMMISSION Edmund G. Brown, Jr., Governor #12;CALIFORNIA ENERGY COMMISSION Andrew McAllister Lead

  14. Fast minimum variance wavefront reconstruction for extremely large telescopes

    E-Print Network [OSTI]

    Eric Thiebaut; Michel Tallon

    2010-03-01

    We present a new algorithm, FRiM (FRactal Iterative Method), aiming at the reconstruction of the optical wavefront from measurements provided by a wavefront sensor. As our application is adaptive optics on extremely large telescopes, our algorithm was designed with speed and best quality in mind. The latter is achieved thanks to a regularization which enforces prior statistics. To solve the regularized problem, we use the conjugate gradient method which takes advantage of the sparsity of the wavefront sensor model matrix and avoids the storage and inversion of a huge matrix. The prior covariance matrix is however non-sparse and we derive a fractal approximation to the Karhunen-Loeve basis thanks to which the regularization by Kolmogorov statistics can be computed in O(N) operations, N being the number of phase samples to estimate. Finally, we propose an effective preconditioning which also scales as O(N) and yields the solution in 5-10 conjugate gradient iterations for any N. The resulting algorithm is therefore O(N). As an example, for a 128 x 128 Shack-Hartmann wavefront sensor, FRiM appears to be more than 100 times faster than the classical vector-matrix multiplication method.

  15. Oscillations above sunspots from the temperature minimum to the corona

    E-Print Network [OSTI]

    Kobanov, N I; Kolobov, D Y

    2013-01-01

    Context. An analysis of the oscillations above sunspots was carried out using simultaneous ground-based and Solar Dynamics Observatory (SDO) observations (SiI 10827A, HeI 10830A, FeI 6173A, 1700A, HeII 304A, FeIX 171A). Aims. Investigation of the spatial distribution of oscillation power in the frequency range 1-8 mHz for the different height levels of the solar atmosphere. Measuring the time lags between the oscillations at the different layers. Methods. We used frequency filtration of the intensity and Doppler velocity variations with Morlet wavelet to trace the wave propagation from the photosphere to the chromosphere and the corona. Results. The 15 min oscillations are concentrated near the outer penumbra in the upper photosphere (1700 A), forming a ring, that expands in the transition zone. These oscillations propagate upward and reach the corona level, where their spatial distribution resembles a fan structure. The spatial distribution of the 5 min oscillation power looks like a circle-shape structure m...

  16. Feather lead concentrations and (207)Pb/(206)Pb ratios reveal lead exposure history of California Condors (Gymnogyps californianus).

    E-Print Network [OSTI]

    2010-01-01

    A. R. Stable isotope labeling of lead compartments inrats with ultralow lead concentrations. Environ. Res. 1992,Royle, J. A. ; Smith, M. R. Lead poisoning in captive Andean

  17. Properly engineer lead paint removal projects

    SciTech Connect (OSTI)

    Kaelin, A.B.

    1996-01-01

    Deciding how to mitigate the hazards during lead paint removal is complex and requires consideration of many variables. Assessment of public health risk, environmental impact, and emissions potential of the operations must be considered. Additionally, the removal technique, containment system, and monitoring criteria must be developed. This article presents an integrated approach to identifying lead hazards, assessing risks to workers, the environment, and the public, developing the appropriate maintenance strategy, and selecting paint removal and containment systems. Also considered are guidelines for selecting a third party to design the overall project. This approach is based on a decision path that provides criteria for project assessment in an orderly fashion. The design of lead paint management projects in industrial applications requires consideration of the variables shown in the decision path.

  18. A Measurement of the holographic minimum observable beam branching ratio in the Fermilab 15-foot bubble chamber

    SciTech Connect (OSTI)

    Aderholz, M.; Aggarwal, M.M.; Akbari, H.; Allport, P.P.; Badyal, S.K.; Ballagh, H.C.; Barth, M.; Baton, J.P.; Bingham, H.H.; Bjelkhagen, H.; Brucker, E.B.; Burnstein,; Campbell, J.R.; Cence, R.J.; Chatterjee, T.K.; Clayton, E.F.; Corrigan, G.; Coutures, C.; DeProspo, D.; Devanand,; De Wolf, E.A.; /UC, Berkeley /Birmingham U. /Brussels U.,

    1997-01-01

    Holography has been used successfully in combination with conventional optics for the first time in a large cryogenic bubble chamber, the 15-Foot Bubble Chamber at Fermilab, during a physics run. The innovative system combined the reference beam with the object beam, illuminating a conical volume of {approx} 1.4 m{sup 3}. Bubble tracks from neutrino interactions with a width of {approx} 120 {micro}m have been recorded with good contrast. The ratio of intensities of the object light to the reference light striking the film is called the Beam Branching Ratio. We obtained in our experiment an exceedingly small minimum-observable ratio of (0.54 {+-} 0.21) x 10{sup -7}. The technology has the potential for a wide range of applications.

  19. A simple Chain-of-States method in acceleration space for the efficient location of Minimum Energy Paths

    E-Print Network [OSTI]

    Hernandez, E R; Soler, J M

    2015-01-01

    We describe a robust and efficient chain-of-states method for computing Minimum Energy Paths~(MEPs) associated to barrier-crossing events in poly-atomic systems. The path is parametrized in terms of a continuous variable $t \\in [0,1]$ that plays the role of time. In contrast to previous chain-of-states algorithms such as the Nudged Elastic Band or String methods, where the positions of the states in the chain are taken as variational parameters in the search for the MEP, our strategy is to formulate the problem in terms of the second derivatives of the coordinates with respect to $t$, {\\em i.e.\\/} the state {\\em accelerations\\/}. We show this to result in a very transparent and efficient method for determining the MEP. We describe the application of the method in a series of test cases, including two low-dimensional problems and the Stone-Wales transformation in $\\mbox{C}_{60}$.

  20. Are You Pregnant? Prevent Lead Poisoning. Start Now.

    E-Print Network [OSTI]

    Are You Pregnant? Prevent Lead Poisoning. Start Now. Lead poisoning is caused by breathing to keep your baby safe from lead poisoning. Here's what you can do: 1 Watch out for lead in your home

  1. Synthesis of uniform nano-structured lead oxide by sonochemical method and its application as cathode and anode of lead-acid batteries

    SciTech Connect (OSTI)

    Karami, Hassan [Department of Chemistry, Payame Noor University, Abhar (Iran, Islamic Republic of)], E-mail: karami_h@yahoo.com; Karimi, Mohammad Ali; Haghdar, Saeed [Department of Chemistry, Payame Noor University, Ardakan (Iran, Islamic Republic of)

    2008-11-03

    This paper discusses the results of a research aimed at investigating the synthesis of nano-structured lead oxide through reaction of lead nitrate solution and sodium carbonate solution by the sonochemical method. At the first, lead carbonate was obtained in a synthesized solution and then, after filtration, it was calcinated at the temperature of 320 deg. C so that nano-structured lead oxide can be produced. The effects of different parameters on particle size and morphology of final lead oxide powder were optimized by a 'one at a time' method. The prepared lead oxide powder was characterized by scanning electron microscopy (SEM), transmission electron spectroscopy (TEM) and X-ray diffraction (XRD). Under optimum conditions, uniformed and homogeneous nano-structured lead oxide powder with more spongy morphology and particle size of 20-40 nm was obtained. The synthesized lead oxide, as anode and cathode of lead-acid batteries, showed an excellent discharge capacity (140 mA h/g)

  2. Chemical sensor development leading to an glucose detection method

    E-Print Network [OSTI]

    Caballero, Jonathan Bano

    2008-01-01

    Overetching leads to undercutting of the oxide below thecan lead to inconsistencies in the gate oxide. Figure 2-11 –

  3. Childhood Lead Poisoning Prevention Program Community Awareness Pilot

    E-Print Network [OSTI]

    Childhood Lead Poisoning Prevention Program Community Awareness Pilot #12;1 THE GOOD NEWS- Exposure to Lead is Preventable Lead Poisoning Is a REAL Problem; Did You Know? Lead is a highly toxic substance the effects of lead poisoning, but lead poisoning is much more frequent in children than in adults. For many

  4. Optimal synthesis for the minimum time control problems of fed-batch bioprocesses for growth functions with two maxima

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    volume (representing a completely full tank). The optimal synthesis for this problem has been obtained) Departamento de Matem´atica, Universidad T´ecnica Federico Santa Mar´ia, Avenida Espa~na 1680, Valpara´iso´ia, Avenida Espa~na 1680, Valpara´iso, Chile (fran- cis.mairet@usm.cl) 1 hal-00655534,version3-2Apr2012 #12

  5. Optimal synthesis for the minimum time control problems of fed-batch bioprocesses for growth functions with two maxima

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    volume (representing a completely full tank). The optimal synthesis for this problem has been obtained) Departamento de Matem´atica, Universidad T´ecnica Federico Santa Mar´ia, Avenida Espa~na 1680, Valpara´iso´ia, Avenida Espa~na 1680, Valpara´iso, Chile (fran- cis.mairet@usm.cl) 1 hal-00655534,version2-31Dec2011 #12

  6. College Library Reserves Guidelines Lists are processed in the order of date received. The minimum processing time is ten

    E-Print Network [OSTI]

    California at Los Angles, University of

    . Exams, Class Notes, Links to Web Pages College Reserves will scan and mount instructors' exams, solution sets, overheads, and class notes on the Reserves Web site in compliance with U.S. copyright law and UC periodically during the quarter but must include a note stating the week they correspond to. · World Wide Web

  7. Reduction in maximum time uncertainty of paired time signals

    DOE Patents [OSTI]

    Theodosiou, G.E.; Dawson, J.W.

    1981-02-11

    Reduction in the maximum time uncertainty (t/sub max/ - t/sub min/) of a series of paired time signals t/sub 1/ and t/sub 2/ varying between two input terminals and representative of a series of single events where t/sub 1/ less than or equal to t/sub 2/ and t/sub 1/ + t/sub 2/ equals a constant, is carried out with a circuit utilizing a combination of OR and AND gates as signal selecting means and one or more time delays to increase the minimum value (t/sub min/) of the first signal t/sub 1/ closer to t/sub max/ and thereby reduce the difference. The circuit may utilize a plurality of stages to reduce the uncertainty by factors of 20 to 800.

  8. Lead-203 as a label for radioimaging

    DOE Patents [OSTI]

    Srivastava, Suresh C. (Setauket, NY); Meinken, George E. (Middle Island, NY)

    1990-01-01

    A radiopharmaceutical composition comprising a radioactive isotope of lead (Pb-203) in combination with a pharmaceutical or an antibody or antibody fragment and a bifunctional chelating agent. These compositions are especially useful in the imaging and diagnosis of tumors and tumor metastases.

  9. Leading Edge Bacterial Genomics and Pathogen Evolution

    E-Print Network [OSTI]

    Mekalanos, John

    Leading Edge Review Bacterial Genomics and Pathogen Evolution David M. Raskin,1 Rekha Seshadri,2 Medical School, Boston, MA 02115, USA 2 The Institute for Genomic Research, 9712 Medical Center Drive.02.002 The availability of hundreds of bacterial genome sequences has altered the study of bacte- rial pathogenesis

  10. LEADING THE WAY September 5, 2012

    E-Print Network [OSTI]

    , dual-enrollment program Focused on students successfully completing their degrees Students benefit from,000 into these efforts 16 #12;Focused on Engaged Learning Activities INTERNSHIPS RESEARCH HONORS Developed a programMNOA LEADING THE WAY September 5, 2012 1 #12;HGI: CHALLENGES FOR STUDENT SUCCESS 2 #12;"Leavers

  11. study engineering in English at a leading

    E-Print Network [OSTI]

    Doty, Sharon Lafferty

    in Aero-mechanics is jointly run by 3 leading French Engineering Schools (Grandes Ecoles): ENAC, ENSICA in the middle of French style education: // a different way to tackle problems (the big picture, from theory in small teams in one of our labs Airbus380­Airbus380assemblyplant EXE DOC APPEL SPRING SEM. 9/03/07 9

  12. Hanford Leads the Way for Greener Classrooms

    Broader source: Energy.gov [DOE]

    EM’s Richland Operations Office and contractor Mission Support Alliance (MSA) are leading the way to greener classrooms by developing a totally paperless class at the HAMMER Federal Training Facility at the Hanford site. MSA manages HAMMER on behalf of EM.

  13. SYMBOLS FOR TIME = time variable

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    =forever) Cost spent to build variation point i at time i = index over variation points #12;SYMBOLS FOR TIME to account for net present value of money r = assumed interest rate i = index over variation points Cost Expected cost summed over all relevant time intervals Cost spent to build variation point i at time r

  14. Observation of scattering and absorption centers in lead fluoride crystals

    E-Print Network [OSTI]

    Patrick Achenbach

    2006-06-22

    For the first time, lead fluoride is used as a fast and compact material in electromagnetic calorimetry. Excellent optical and mechanical properties of the pure Cherenkov crystals are necessary for the A4 collaboration to perform a measurement of the nucleon's strange form factors. Visible scattering and absorption centers as well as surface damages have been investigated to characterize the quality of more than one thousand crystals. Besides, transmittance measurements have been performed on all crystals to reveal absorption bands produced by intrinsic or impurity related point-structure defects. As a consequence, 89 crystals had to be replaced by the Chinese manufacturer SICCAS.

  15. Modelling Time

    E-Print Network [OSTI]

    Burra G. Sidharth

    2008-09-03

    We briefly review two concepts of time - the usual time associated with "being" and more recent ideas, answering to the description of "becoming". The approximation involved in the former is examined. Finally we argue that it is (unpredictable) fluctuations that underlie time.

  16. Local-time effect on small space-time scale

    E-Print Network [OSTI]

    V. A. Panchelyuga; V. A. Kolombet; M. S. Panchelyuga; S. E. Shnoll

    2006-10-18

    The paper presents an investigation of local-time effect - one of the manifestations of macroscopic fluctuations phenomena. Was shown the existence of the named effect for longitudinal distance between locations of measurements up to 500 meters. Also a structure of intervals distribution in neighborhood of local-time peak was studied and splitting of the peak was found out. Obtained results lead to conclusion about sharp anisotropy of space-time.

  17. Validation of a 20-year forecast of US childhood lead poisoning: Updated prospects for 2010

    SciTech Connect (OSTI)

    Jacobs, David E. . E-mail: dejacobs@starpower.net; Nevin, Rick

    2006-11-15

    We forecast childhood lead poisoning and residential lead paint hazard prevalence for 1990-2010, based on a previously unvalidated model that combines national blood lead data with three different housing data sets. The housing data sets, which describe trends in housing demolition, rehabilitation, window replacement, and lead paint, are the American Housing Survey, the Residential Energy Consumption Survey, and the National Lead Paint Survey. Blood lead data are principally from the National Health and Nutrition Examination Survey. New data now make it possible to validate the midpoint of the forecast time period. For the year 2000, the model predicted 23.3 million pre-1960 housing units with lead paint hazards, compared to an empirical HUD estimate of 20.6 million units. Further, the model predicted 498,000 children with elevated blood lead levels (EBL) in 2000, compared to a CDC empirical estimate of 434,000. The model predictions were well within 95% confidence intervals of empirical estimates for both residential lead paint hazard and blood lead outcome measures. The model shows that window replacement explains a large part of the dramatic reduction in lead poisoning that occurred from 1990 to 2000. Here, the construction of the model is described and updated through 2010 using new data. Further declines in childhood lead poisoning are achievable, but the goal of eliminating children's blood lead levels {>=}10 {mu}g/dL by 2010 is unlikely to be achieved without additional action. A window replacement policy will yield multiple benefits of lead poisoning prevention, increased home energy efficiency, decreased power plant emissions, improved housing affordability, and other previously unrecognized benefits. Finally, combining housing and health data could be applied to forecasting other housing-related diseases and injuries.

  18. Lead magnesium niobate actuator for micropositioning

    DOE Patents [OSTI]

    Swift, Charles D. (Livermore, CA); Bergum, John W. (Concord, CA)

    1994-01-01

    An improved lead magnesium niobate actuator is disclosed comprising a cylindrical lead magnesium niobate crystal stack mounted in a cylindrical casing wherein a bias means, such as one or more belleville washers, is located between one end of the crystal stack and a partially closed end of the casing; and adjustment means are provided which bear against the opposite end of the crystal stack, whereby an adjustable compressive force is constantly applied against the crystal stack, whether the crystal stack is actuated in an extended position, or is in an unactuated contracted position. In a preferred embodiment, cooling ports are provided for the circulation of coolant in the actuator to cool the crystal stack, and provision is made for removal and replacement of the crystal stack without disconnecting the actuator from the external device being actuated.

  19. Composition of White Lead and Paints. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1908-01-01

    EXPERIMENT 8TATIONS. BULLETIN NO. 114 NOVEMBER, 1908. Composition of White lead and Paints. G. S. FRAPS, PH. D,, Chemist. POSTOFFICE : COLLEGE STATION, BRAZOS COUNTY, TEXAS. AUSTIY, TEXAS: VON BOECKMANN-JONES COMPANY, PRINTERS TEXAS AGRICULTURAL EXPE...\\gricultural a M'echanicnl College, in Brazos connty. The posfofEw :>rltlrris iq College SCati Texas. Reports and bulletins are sent free upon application to the Director. TABLE OF CONTENTS . Paint Materials...

  20. Heavy metals and lead isotopes in sdB stars

    E-Print Network [OSTI]

    S. O'Toole; U. Heber

    2006-12-19

    We present a detailed abundance analysis of high-resolution ultraviolet echelle spectra of five subdwarf B stars obtained with HST-STIS The goal of our observations was to test the hypothesis that pulsations in sdBs are correlated to the surface abundances of iron-group elements. We study two pulsators and three non-pulsators and determined abundances for 25 elements including the iron group and even heavier elements such as tin and lead using LTE spectrum synthesis techniques. We find strong enrichments of heavy elements up to 2.9dex with respect to solar which are probably caused by atomic diffusion processes. No clear-cut correlation between pulsations and metal abundances becomes apparent. Abundances for lead isotopes are derived from very high resolution spectra using an UV line of triply ionised lead. As Pb terminates the s-process sequence Pb isotopic abundance ratios yield important constraints. It is very difficult to measure them in hot stars. For the first time we were able to measure them in two subluminous B stars and conclude that the 207Pb/208Pb is solar.

  1. Quantum Time

    E-Print Network [OSTI]

    John Ashmead

    2010-05-05

    Normally we quantize along the space dimensions but treat time classically. But from relativity we expect a high level of symmetry between time and space. What happens if we quantize time using the same rules we use to quantize space? To do this, we generalize the paths in the Feynman path integral to include paths that vary in time as well as in space. We use Morlet wavelet decomposition to ensure convergence and normalization of the path integrals. We derive the Schr\\"odinger equation in four dimensions from the short time limit of the path integral expression. We verify that we recover standard quantum theory in the non-relativistic, semi-classical, and long time limits. Quantum time is an experiment factory: most foundational experiments in quantum mechanics can be modified in a way that makes them tests of quantum time. We look at single and double slits in time, scattering by time-varying electric and magnetic fields, and the Aharonov-Bohm effect in time.

  2. CLIMATICALLY-ACTIVE GASES IN THE EASTERN BOUNDARY UPWELLING AND OXYGEN MINIMUM ZONE (OMZ) SYSTEMS

    E-Print Network [OSTI]

    Garbe, Christoph S.

    . In this contribution we introduce Index Terms-- Air-Sea Interactions, Fluxes, Green House Gases, Satellite Retrieval) contribute very significantly to the gas exchange between the ocean and the atmosphere, notably with respect (Oxygen Minimum Zone) contribute very significantly to the gas exchange between the ocean

  3. Minimum Movement Matters: Impact of Robot-Mounted Cameras on Social Telepresence

    E-Print Network [OSTI]

    Nakanishi, Hideyuki

    Minimum Movement Matters: Impact of Robot-Mounted Cameras on Social Telepresence Hideyuki Nakanishi-backward movement of the camera significantly contributed to social telepresence, while rotation did not. We also commercially available. This paper shows that movement of these robots enhances distant people's presence

  4. Buffer Sizing for Minimum Energy-Delay Product by Using an Approximating Polynomial

    E-Print Network [OSTI]

    Pedram, Massoud

    Buffer Sizing for Minimum Energy-Delay Product by Using an Approximating Polynomial Chang Woo Kang to derive sizing rules for buffered chains, which optimize the overall energy-delay product. Categories result in a poor solution in terms of the energy-delay product. The focus of this work is on multi

  5. A steady-state L-mode tokamak fusion reactor : large scale and minimum scale

    E-Print Network [OSTI]

    Reed, Mark W. (Mark Wilbert)

    2010-01-01

    We perform extensive analysis on the physics of L-mode tokamak fusion reactors to identify (1) a favorable parameter space for a large scale steady-state reactor and (2) an operating point for a minimum scale steady-state ...

  6. Requirements for the MINOR in Environmental Science Five courses required. Total credits = minimum of 15

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Urban Geography GEO-SCI 372 Urban Issues GEO-SCI 380 Political Geography GEO-SCI 420 Political Ecology Environmental Policy REGIONPL 558 Issues in Environmental Mgt RESECON 471Benefit-Cost Analysis RESECON 472Requirements for the MINOR in Environmental Science Five courses required. Total credits = minimum

  7. Nonparametric Assessment of Contamination in Multivariate Data Using Minimum Volume Sets and FDR

    E-Print Network [OSTI]

    Scott, Clayton

    Nonparametric Assessment of Contamination in Multivariate Data Using Minimum Volume Sets and FDR `contaminated' instances. However, often the nature of even the nominal patterns in the data are unknown with false discovery rate prin- ciples, in the context of contaminated data, is new. Moreover, estimation

  8. The persistence of solar activity indicators and the descent of the Sun into Maunder Minimum conditions

    E-Print Network [OSTI]

    Lockwood, Mike

    as the Maunder Minimum (MM). This raises questions about the persistence and predictability of solar activity. We study the autocorrelation functions and predictability R2 L(t) of solar indices, particularly group prediction by Svalgaard et al. [2005] from the solar polar fields but is significantly lower than NOAA's most

  9. eVADER: A Perceptual Approach to Finding Minimum Warning Sound Requirements for Quiet Cars.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , such as hybrid and electric vehicles, to pedestrians has become an important issue for public policy [1], car a localization paradigm to test the detectability of hybrid and internal combustion cars by measuring listenereVADER: A Perceptual Approach to Finding Minimum Warning Sound Requirements for Quiet Cars. Ryan

  10. Boundaries of the Peruvian Oxygen Minimum Zone shaped by coherent mesoscale dynamics

    E-Print Network [OSTI]

    Bettencourt, João H; García, Emilio Hernández; Montes, Ivonne; Sudre, Joël; Dewitte, Boris; Paulmier, Aurélien; Garçon, Véronique

    2015-01-01

    Dissolved oxygen in sea water is a major factor affecting marine habitats and biogeochemical cycles. Oceanic zones with oxygen deficits represent significant portions of the area and volume of the oceans and are thought to be expanding. The Peruvian oxygen minimum zone is one of the most pronounced and lies in a region of strong mesoscale activity in the form of vortices and frontal regions, whose effect in the dynamics of the oxygen minimum zone is largely unknown. Here, we study this issue from a modeling approach and a Lagrangian point of view, using a coupled physical-biogeochemical simulation of the Peruvian oxygen minimum zone and finite-size Lyapunov exponent fields to understand the link between mesoscale dynamics and oxygen variations. Our results show that, at depths between 380 and 600 meters, mesoscale structures have a relevant dual role. First, their mean positions and paths delimit and maintain the oxygen minimum zone boundaries. Second, their high frequency fluctuations entrain oxygen across t...

  11. Guaranteed Minimum-Rank Solutions of Linear Matrix Equations via Nuclear Norm Minimization

    E-Print Network [OSTI]

    Fazel, Maryam

    Guaranteed Minimum-Rank Solutions of Linear Matrix Equations via Nuclear Norm Minimization Benjamin theory and practice. A recent heuristic introduced in [9] minimizes the nuclear norm over the affine subset. For an m × n matrix X, the nuclear norm is equal to the sum of the singular values of X X := r i

  12. String method in collective variables: Minimum free energy paths and isocommittor surfaces

    E-Print Network [OSTI]

    Van Den Eijnden, Eric

    York University, New York, New York 10012 Giovanni Ciccottid INFM and Dipartimento di Fisica in the free energy. Provided that the number of collective variables is large enough, the new techniqueString method in collective variables: Minimum free energy paths and isocommittor surfaces Luca

  13. Energy-Efficient Distributed Constructions of Minimum Spanning Tree for Wireless Ad-hoc

    E-Print Network [OSTI]

    Khan, Maleq

    1 Energy-Efficient Distributed Constructions of Minimum Spanning Tree for Wireless Ad-hoc Networks and energy efficient for being practical. Motivated by these considerations, we study the performance of a class of simple and local algorithms called Nearest Neighbor Tree (NNT) algorithms for energy

  14. A MEASUREMENT OF THE PROTON SPECTRUM AT 1 AU NEAR SOLAR MINIMUM WITH THE CAPRICE EXPERIMENT

    E-Print Network [OSTI]

    Morselli, Aldo

    OG 5.2.1 A MEASUREMENT OF THE PROTON SPECTRUM AT 1 AU NEAR SOLAR MINIMUM WITH THE CAPRICELaboratori Nazionali INFN, Frascati, Italy 5NASA/Goddard Space Flight Center, Greenbelt, USA 6New Mexico the production and acceleration mechanism of cosmic rays, as well as the solar modulation effect

  15. Approximating Minimum-Power Edge-Covers and 2, 3-Connectivity Guy Kortsarz

    E-Print Network [OSTI]

    Kortsarz, Guy

    than edge-connectivity, as it models stations failures. Such power minimization problems were vastlyApproximating Minimum-Power Edge-Covers and 2, 3-Connectivity Guy Kortsarz Rutgers University a graph with edge costs, the power of a node is the maximum cost of an edge leaving it, and the power

  16. MINIMUM COST STRATEGIES FOR SEQUESTERING CARBON IN FORESTS Darius M. Adams

    E-Print Network [OSTI]

    McCarl, Bruce A.

    MINIMUM COST STRATEGIES FOR SEQUESTERING CARBON IN FORESTS Darius M. Adams Ralph J. Alig Bruce A the costs of meeting explicit targets for increments of carbon sequestered in forests when both forest management decisions and the area of forests can be varied. Costs are estimated as welfare losses in markets

  17. Minimum-Cost Tolerance Allocation ADCATS Report No. 99-5

    E-Print Network [OSTI]

    Minimum-Cost Tolerance Allocation ADCATS Report No. 99-5 Kenneth W. Chase Department of Mechanical-all cost of production, while meeting target levels for quality. Using allocation tools, a designer may re and loosening tolerances on costly processes, for a net reduction in cost. Several algorithms are described

  18. Minimum Energy Source Coding for Asymmetric Modulation with Application to RFID

    E-Print Network [OSTI]

    Roy, Sumit

    , Minimum En- ergy, Source Coding, Energy Harvesting, EPC Global. I. INTRODUCTION Energy constrained consumption and extend operation lifetime. Such energy effi- ciency may be obtained at multiple levels - from coding, but with a focus on energy consumption. For example, channel coding schemes Contact Author

  19. A minimum-reaction-flux solution to master-equation models of protein folding

    E-Print Network [OSTI]

    Weston, Ken

    A minimum-reaction-flux solution to master-equation models of protein folding Huan-Xiang Zhoua; published online 20 May 2008 Master equations are widely used for modeling protein folding. Here- ceptual and quantitative models for protein folding.1­15 In such models, the conformational space

  20. Finding the Energy Efficient Curve: Gate Sizing for Minimum Power under Delay Constraints

    E-Print Network [OSTI]

    Kolodny, Avinoam

    Finding the Energy Efficient Curve: Gate Sizing for Minimum Power under Delay Constraints Yoni in a fast circuit by the same factor does not yield an energy-efficient design, and we characterize efficient. A design implementation is considered to be energy efficient when it has the highest performance

  1. Approximating the minimum clique cover and other hard problems in subtree filament graphs

    E-Print Network [OSTI]

    Stewart, Lorna

    Approximating the minimum clique cover and other hard problems in subtree filament graphs J. Mark Keil Lorna Stewart March 20, 2006 Abstract Subtree filament graphs are the intersection graphs of subtree filaments in a tree. This class of graphs contains subtree overlap graphs, interval filament

  2. Design methodology for tracking certain and uncertain non-minimum phase systems 

    E-Print Network [OSTI]

    DeVoucalla, George David

    1997-01-01

    A design methodology is developed for obtaining tracking controllers for non-minimum phase systems. The discussion centers around a solution for the error equation E(s) = [1- H(s)] Yd(S)'Tracking error is eliminated by making [1-H(s)] orthogonal...

  3. SOHO-23: Understanding a Peculiar Solar Minimum ASP Conference Series, Vol. 428, c 2010

    E-Print Network [OSTI]

    California at Berkeley, University of

    . Cranmer, J. Todd Hoeksema, and John L. Kohl, eds. The Solar Microwave Flux and the Sunspot Number L, it has been showing unusual behavior in the Cycle 23/24 minimum. The origins of the solar microwave flux), straddling the F10.7 frequency (2.8 GHz) and encompassing the gyroresonance signature in the solar microwave

  4. Jet Interaction and the Influence of a Minimum Phase Speed Bound on the Propagation of Eddies

    E-Print Network [OSTI]

    Vallis, Geoff

    Jet Interaction and the Influence of a Minimum Phase Speed Bound on the Propagation of Eddies and analogs of the midlatitude eddy-driven jet and the subtropical jet is investigated in a barotropic b-plane model. In the model the subtropical jet is generated by a relaxation process and the eddy-driven jet

  5. Bachelor of Arts with Major in Geology: Earth and Space Science (Minimum of 120 credits required)

    E-Print Network [OSTI]

    Belogay, Eugene A.

    Bachelor of Arts with Major in Geology: Earth and Space Science (Minimum of 120 credits required) The Bachelor of Arts (B.A.) degree in Geology (Earth Science) is designed for students planning professional 2053 & 2048L 5 College Algebra MAC 1105 3 Introductory Statistics STA 2023 3 Total 19 Geology (Earth

  6. ASHRAE Minimum Efficiency Requirements Tables for Heating and Cooling Product Categories

    Broader source: Energy.gov [DOE]

    The Federal Energy Management Program (FEMP) created tables that mirror American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 90.1-2013 tables, which include minimum efficiency requirements for FEMP-designated and ENERGY STAR-qualified heating and cooling product categories. Download the tables below to incorporate FEMP and ENERGY STAR purchasing requirements into federal product acquisition documents.

  7. Pedestrian Timing Treatment for Coordinated Signal Systems Zong Z. Tian1

    E-Print Network [OSTI]

    Tian, Zong Z.

    Pedestrian Timing Treatment for Coordinated Signal Systems Zong Z. Tian1 Tom Urbanik2 Kent K. Kacir3 Mark A. Vandehey4 Howard Long5 ABSTRACT: Pedestrian timing has always been one of the major issues treatments on pedestrian timings: timing based on pedestrian minimums where the required pedestrian crossing

  8. Rules Establishing Minimum Standards Relating to Location, Design, Construction, and Maintenance of Onsite Wastewater Treatment Systems (Rhode Island)

    Broader source: Energy.gov [DOE]

    The purpose of these rules is to protect public health and the environment by establishing minimum standards for the proper location, design, construction and maintenance of onsite wastewater...

  9. XRD, lead equivalent and UV-VIS properties study of Ce and Pr lead silicate glasses

    SciTech Connect (OSTI)

    Alias, Nor Hayati, E-mail: norhayati@nuclearmalaysia.gov.my; Abdullah, Wan Shafie Wan, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Norriza Mohd, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Muhammad Jamal Md, E-mail: norhayati@nuclearmalaysia.gov.my; Zali, Nurazila Mat; Abdullah, Nuhaslinda Ee [Malaysian Nuclear Agency, 43000, Bangi, Kajang, Selangor (Malaysia); Muhammad, Azali [Malaysian Society for Non-Destructive Testing (Malaysia)

    2014-02-12

    In this work, Cerium (Ce) and Praseodymium (Pr) containing lead silicate glasses were produced with 2 different molar ratios low (0.2 wt%) and high (0.4wt%). These types of glasses can satisfy the characteristics required for radiation shielding glasses and minimize the lead composition in glass. The radiation shielding properties of the synthesized glasses is explained in the form of lead equivalent study. The XRD diffraction and UV-VIS analysis were performed to observe the structural changes of the synthesis glasses at 1.5 Gy gamma radiation exposures.

  10. Lead Content of Brass Plumbing Components J Barry Maynard

    E-Print Network [OSTI]

    Maynard, J. Barry

    Lead Content of Brass Plumbing Components J Barry Maynard University of Cincinnati 2008 Water are leaded brass and hence comprise a potential source of Pb in compliance testing under the Lead and Copper be marketed as "lead free". In true no-lead brasses, Bi and Se are used in place of Pb (http

  11. Know the Facts Lead poisoning is caused by swallowing or

    E-Print Network [OSTI]

    Know the Facts Lead poisoning is caused by swallowing or breathing lead. Children under 6 years old problems.FACT Lead poisoning hurts the brain and nervous system. Some of the effects of lead poisoning may and speech · Make it hard to pay attention and learn FACT Most children get lead poisoning from paint

  12. A Linear-Time Approach for Static Timing Analysis Covering All Process Corners

    E-Print Network [OSTI]

    Najm, Farid N.

    A Linear-Time Approach for Static Timing Analysis Covering All Process Corners Sari Onaissi into the timing analysis of a circuit. With the increase in the number of interesting process vari- ables process variations lead to circuit timing variability and a corresponding timing yield loss. Traditional

  13. Energy Policy 29 (2001) 11331143 Ethanol as a lead replacement: phasing out leaded gasoline in Africa

    E-Print Network [OSTI]

    Thomas, Valerie

    2001-01-01

    lead with ethanol using primarily their by-product molasses production include Zimbabwe, Kenya, Egypt proponents have typically focused on the benefits of ethanol in terms of greenhouse gas emissions, local

  14. Asian anthropogenic lead contamination in the North Pacific Ocean as evidenced by stable lead isotopic compositions

    E-Print Network [OSTI]

    Zurbrick, Cheryl Marie

    2014-01-01

    and North Central Pacific Ocean. Deep Sea Res. Part II Top.Lead Within the Northwest Pacific Ocean Evidenced by Leadventilation flux of the Pacific Ocean. J. Geophys. Res. 106(

  15. Non-lead hollow point bullet

    DOE Patents [OSTI]

    Vaughn, Norman L. (Knoxville, TN); Lowden, Richard A. (Clinton, TN)

    2003-04-15

    The non-lead hollow point bullet of the instant invention comprises a mixed construction slug further comprising, a monolithic metal insert having a tapered (preferred conical) hollow point tip and a tapered (preferred conical) tail protrusion, and an unsintered powdered metal composite core in tandem alignment with the insert. The core has a hollow tapered (preferred conical) cavity tip portion coupled with the tapered (preferred conical) tail protrusion on the insert. An open tip jacket envelops at least a portion of the insert and the core. The jacket is swaged at the open tip.

  16. Thermal conductivity of bulk nanostructured lead telluride

    SciTech Connect (OSTI)

    Hori, Takuma [Department of Mechanical Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656 (Japan); Chen, Gang [Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Shiomi, Junichiro, E-mail: shiomi@photon.t.u-tokyo.ac.jp [Department of Mechanical Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656 (Japan); PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012 (Japan)

    2014-01-13

    Thermal conductivity of lead telluride with embedded nanoinclusions was studied using Monte Carlo simulations with intrinsic phonon transport properties obtained from first-principles-based lattice dynamics. The nanoinclusion/matrix interfaces were set to completely reflect phonons to model the maximum interface-phonon-scattering scenario. The simulations with the geometrical cross section and volume fraction of the nanoinclusions matched to those of the experiment show that the experiment has already reached the theoretical limit of thermal conductivity. The frequency-dependent analysis further identifies that the thermal conductivity reduction is dominantly attributed to scattering of low frequency phonons and demonstrates mutual adaptability of nanostructuring and local disordering.

  17. Novel lead-iron phosphate glass

    DOE Patents [OSTI]

    Boatner, L.A.; Sales, B.C.

    1989-07-11

    The invention described and claimed in the specification relates to the discovery that effective addition of Fe[sub 2]O[sub 3] to a lead phosphate glass results in a glass having enhanced chemical durability and physical stability, and consists essentially of the glass resulting from melting a mixture consisting essentially of, in weight percent, 40--66 percent PbO, 30--55 percent P[sub 2]O[sub 5] and an effective concentration up to 12 percent Fe[sub 2]O[sub 3].

  18. Lead Slowing Down Spectrometer Status Report

    SciTech Connect (OSTI)

    Warren, Glen A.; Anderson, Kevin K.; Bonebrake, Eric; Casella, Andrew M.; Danon, Yaron; Devlin, M.; Gavron, Victor A.; Haight, R. C.; Imel, G. R.; Kulisek, Jonathan A.; O'Donnell, J. M.; Weltz, Adam

    2012-06-07

    This report documents the progress that has been completed in the first half of FY2012 in the MPACT-funded Lead Slowing Down Spectrometer project. Significant progress has been made on the algorithm development. We have an improve understanding of the experimental responses in LSDS for fuel-related material. The calibration of the ultra-depleted uranium foils was completed, but the results are inconsistent from measurement to measurement. Future work includes developing a conceptual model of an LSDS system to assay plutonium in used fuel, improving agreement between simulations and measurement, design of a thorium fission chamber, and evaluation of additional detector techniques.

  19. Zerkle to lead LANL's Information Technology organization

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAboutXu Named| Princeton Plasma PhysicsZacharyZerkle to lead

  20. Events leading to the Manhattan Project

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAboutXuRod Hunt (208) 386-5254 Washington575MAYEvents leading to

  1. Lead Software Engineer | Princeton Plasma Physics Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E C H N I C A L TA L K < <CloudLead

  2. Communications and Outreach K. L. Bethea1 Team Lead/

    E-Print Network [OSTI]

    05/20/2014 Communications and Outreach K. L. Bethea1 Team Lead/ Lead Science Writer D. I. Brownlee1 Lead Science and Technology Systems K. White4, Group Leader M. Johnson4, Admin. Assistant #12;

  3. Lead Toxicity Resulting from Chronic Ingestion of Opium

    E-Print Network [OSTI]

    Jalili, Mohammad; Azizkhani, Reza

    2009-01-01

    real danger to Paloucek FP. Lead poisoning. Am Pharm. 1993;al. The decline of blood lead levels in the United States:BL, Leng CK, Hsii FP, et al. Lead Poisoning From Examination

  4. ELLIPSOMETRY OF SURFACE LAYERS ON LEAD AND LITHIUM

    E-Print Network [OSTI]

    Peters, Richard Dudley

    2011-01-01

    obtained from corrosion of lead in sulfuric acid. DimensionlC2.430 References L Bode, Lead teries (Wiley-Interscienceof Surface Layers on Lead and Lithium By Richard Dudley

  5. SOUTHERN CALIFORNIA EDISON Leading the Way in Electricity

    E-Print Network [OSTI]

    SOUTHERN CALIFORNIA EDISON Leading the Way in Electricity 1 Southern California Edison Leading the Way in Electricity 1 Distributed Energy Resource 21, 2013 #12;SOUTHERN CALIFORNIA EDISON Leading the Way in Electricity 2

  6. Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in

    E-Print Network [OSTI]

    Maynard, J. Barry

    Lead in Your Drinking Water Lead (Pb) is an extremely toxic heavy metal that unfortunately occurs widely in our environment. The chief sources of exposure are from (1) Lead paint ­ commonly present in house interiors (2) Leaded gasoline ­ soils along major roadways are strongly enriched in lead

  7. Kodama time

    E-Print Network [OSTI]

    Abreu, Gabriel

    2010-01-01

    In a general time-dependent (3+1)-dimensional spherically symmetric spacetime, the so-called Kodama vector is a naturally defined geometric quantity that is timelike outside the evolving horizon and so defines a preferred class of fiducial observers. However the Kodama vector does not by itself define any preferred notion of time. We demonstrate that a preferred time coordinate - which we shall call Kodama time - can be introduced by taking the additional step of applying the Clebsch decomposition theorem to the Kodama vector. We thus construct a geometrically preferred coordinate system for any time-dependent spherically symmetric spacetime, and explore its properties. In particular we use this formalism to construct a general class of conservation laws, generalizing Kodama's energy flux. We study the geometrically preferred fiducial observers, and demonstrate that it is possible to define and calculate a generalized notion of surface gravity that is valid throughout the entire evolving spacetime. Furthermor...

  8. A NEW SUB-PERIOD-MINIMUM CATACLYSMIC VARIABLE WITH PARTIAL HYDROGEN DEPLETION AND EVIDENCE OF SPIRAL DISK STRUCTURE

    SciTech Connect (OSTI)

    Littlefield, C.; Garnavich, P.; Magno, K.; Applegate, A.; Pogge, R.; Irwin, J.; Marion, G. H.; Kirshner, R.; Vinko, J.

    2013-06-15

    We present time-resolved spectroscopy and photometry of CSS 120422:111127+571239 (=SBS 1108+574), a recently discovered SU UMa-type dwarf nova whose 55 minute orbital period is well below the cataclysmic variable (CV) period minimum of {approx}78 minutes. In contrast with most other known CVs, its spectrum features He I emission of comparable strength to the Balmer lines, implying a hydrogen abundance less than 0.1 of long-period CVs-but still at least 10 times higher than that in AM CVn stars. Together, the short orbital period and remarkable helium-to-hydrogen ratio suggest that mass transfer in CSS 120422 began near the end of the donor star's main-sequence lifetime, meaning that this CV is a strong candidate progenitor of an AM CVn system as described by Podsiadlowski et al. Moreover, a Doppler tomogram of the H{alpha} line reveals two distinct regions of enhanced emission. While one is the result of the stream-disk impact, the other is probably attributable to spiral disk structure generated when material in the outer disk achieves a 2:1 orbital resonance with respect to the donor.

  9. Secretary Bodman to Lead Presidential Delegation to Baku, Azerbaijan...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Secretary Bodman to Lead Presidential Delegation to Baku, Azerbaijan for 2008 Energy Summit Secretary Bodman to Lead Presidential Delegation to Baku, Azerbaijan for 2008 Energy...

  10. Dow Chemical Company: Assessment Leads to Steam System Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Dow Chemical Company: Assessment Leads to Steam System Energy Savings in a Petrochemical Plant Dow Chemical Company: Assessment Leads to Steam System Energy Savings in a...

  11. Discovery of Weyl Semimetals May Lead to Novel Future Spintronic...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Discovery of Weyl Semimetals May Lead to Novel Future Spintronic Applications Discovery of Weyl Semimetals May Lead to Novel Future Spintronic Applications Print Wednesday, 09...

  12. Volunteers Leading Technology, A Case Study: Chewonki Renewable...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Volunteers Leading Technology, A Case Study: Chewonki Renewable Hydrogen Project Volunteers Leading Technology, A Case Study: Chewonki Renewable Hydrogen Project This presentation...

  13. Solar Decathlon 2015: Nation's Leading Sustainable Home Design...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Nation's Leading Sustainable Home Design Competition on the Horizon Solar Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon July 13, 2015 - 2:15pm...

  14. Solar Decathlon 2015: Nation's Leading Sustainable Home Design...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Solar Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon Solar Decathlon 2015: Nation's Leading Sustainable Home Design Competition on the Horizon...

  15. Anthropogenic Lead Emissions in the Ocean: The Evolving Global Experiment

    E-Print Network [OSTI]

    Lee, Jong-Mi

    We review the current distribution of lead and lead isotopes in the ocean with regard to the evolving pattern of human emissions during the past decades and centuries.

  16. Lead Slowing Down Spectrometry Analysis of Data from Measurements...

    Office of Scientific and Technical Information (OSTI)

    Lead Slowing Down Spectrometry Analysis of Data from Measurements on Nuclear Fuel Citation Details In-Document Search Title: Lead Slowing Down Spectrometry Analysis of Data from...

  17. Energy Department to Lead Workshop on Tribal Renewable Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Department to Lead Workshop on Tribal Renewable Energy Development in Oklahoma Energy Department to Lead Workshop on Tribal Renewable Energy Development in Oklahoma June 1,...

  18. Leading the Charge: Jana Ganion Advances Blue Lake Rancheria...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Leading the Charge: Jana Ganion Advances Blue Lake Rancheria's Climate Action Agenda Leading the Charge: Jana Ganion Advances Blue Lake Rancheria's Climate Action Agenda February...

  19. Prabhat Steps In as DAS Group LeadPage

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Group Lead September 1, 2014 prabhat Prabhat has been named Group Lead of the Data and Analytics Services (DAS) Group at the Department of Energy's National Energy Research...

  20. Invasive interactions of Monomorium minimum (Hymenoptera: Formicidae) and Solenopsis invicta (Hymenoptera: Formicidae) infected with Thelohania solenopsae (Microsporida: Thelohaniidae) 

    E-Print Network [OSTI]

    Keck, Molly Elizabeth

    2006-08-16

    minimum (Buckley), and S. invicta colonies infected with T. solenopsae and S. invicta colonies free of parasites. This study utilized S. invicta colonies of 100, 300, 600, 800, and 1000 workers to determine the ability of 1000 M. minimum workers to invade...

  1. Minimum-Risk Path Finding by an Adaptive Amoebal Network Toshiyuki Nakagaki,1,2,* Makoto Iima,1

    E-Print Network [OSTI]

    Showalter, Kenneth

    Minimum-Risk Path Finding by an Adaptive Amoebal Network Toshiyuki Nakagaki,1,2,* Makoto Iima,1 is formed that connects the food sources through the shortest route. When the light- avoiding organism risk as the experimentally measurable rate of light-avoiding movement, the minimum-risk path

  2. Design Considerations for an On-Demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network

    E-Print Network [OSTI]

    Brown, Timothy X.

    1 Design Considerations for an On-Demand Minimum Energy Routing Protocol for a Wireless Ad Hoc at Boulder Boulder, CO-80309 Abstract--A minimum energy routing protocol reduces the energy con- sumption of energy to get the packets to their destination. This paper identifies the necessary features of an on

  3. How Much Is Our Fairness Worth? The Effect of Raising Stakes on Offers by Proposers and Minimum Acceptable

    E-Print Network [OSTI]

    Flegr, Jaroslav

    How Much Is Our Fairness Worth? The Effect of Raising Stakes on Offers by Proposers and Minimum Acceptable Offers in Dictator and Ultimatum Games Julie Novakova*, Jaroslav Flegr Biology Department the amount at stake and the minimum acceptable offer in the Ultimatum Game and the proposed shares in both

  4. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Possible impacts of a future Grand Solar Minimum1

    E-Print Network [OSTI]

    Maycock, Amanda

    climate system. It follows that changes in solar activity have the potential to27 influence global surface century known as the Maunder min-8 imum. The impact of returning to such a `grand solar minimum' on global Solar Minimum1 on surface climate2 A. C. Maycock 1 , S. Ineson 2 , L. J. Gray 34 , A. A. Scaife 2 and M

  5. Quantum time

    E-Print Network [OSTI]

    Giovannetti, Vittorio

    We give a consistent quantum description of time, based on Page and Wootters’s conditional probabilities mechanism, which overcomes the criticisms that were raised against similar previous proposals. In particular we show ...

  6. Next-to-Leading-Order Event Generators

    E-Print Network [OSTI]

    Paolo Nason; Bryan Webber

    2012-02-06

    We review the methods developed for combining the parton shower approximation to QCD with fixed-order perturbation theory, in such a way as to achieve next-to-leading-order (NLO) accuracy for inclusive observables. This has made it possible to generate fully-simulated hadronic final states with the precision and stability of NLO calculations. We explain the underlying theory of the existing methods, MC@NLO and POWHEG, together with their similarities, differences, achievements and limitations. For illustration we mainly compare results on Higgs boson production at the LHC, with particular emphasis on the residual uncertainties arising from the different treatment of effects beyond NLO. We also briefly summarize the difference between these NLO + parton shower methods and matrix-element + parton shower matching, and current efforts to combine the two approaches.

  7. LOFT lead rod test results evaluation. [PWR

    SciTech Connect (OSTI)

    Driskell, W.B.; Tolman, E.L.

    1980-07-30

    The purpose for evaluating the LOFT Lead Rod Test (simulations of large break, loss-of-coolant accidents) data was to determine; (a) if the centerline thermocouple and fuel rod elongation sensor data show indications of the collapsed fuel rod cladding, (b) the capability of the FRAP-T5 computer code to accurately predict cladding collapse, and (c) if cladding surface thermocouples enhance fuel rod cooling. With consideration to unresolved questions on data integrity, it was concluded that: the fuel rod centerline thermocouple and elongation sensor data do show indications of the fuel rod cladding collapse; the FRAP-T5 code conservatively predicts cladding collapse; and there is an indication that cladding surface thermocouples are enhancing fuel rod cooling.

  8. Closure device for lead-acid batteries

    DOE Patents [OSTI]

    Ledjeff, Konstantin (Schwalbach, DE)

    1983-01-01

    A closure device for lead-acid batteries includes a filter of granulated activated carbon treated to be hydrophobic combined with means for preventing explosion of emitted hydrogen and oxygen gas. The explosion prevention means includes a vertical open-end tube within the closure housing for maintaining a liquid level above side wall openings in an adjacent closed end tube. Gases vent from the battery through a nozzle directed inside the closed end tube against an impingement surface to remove acid droplets. The gases then flow through the side wall openings and the liquid level to quench any possible ignition prior to entering the activated carbon filter. A wick in the activated carbon filter conducts condensed liquid back to the closure housing to replenish the liquid level limited by the open-end tube.

  9. Lead paint abatement -- A technological review

    SciTech Connect (OSTI)

    Draper, A.C. III; Kapuscik, D.

    1994-12-31

    Abatement of lead from various surfaces proves to be a rapidly developing industry. Removal techniques and effectiveness varies greatly with varying substrates (wood, concrete, steel, etc.) and surface configurations including interior/exterior considerations, habitability and anticipated retrofit. Numerous technologies advances, and/or adaptations of long accepted removal techniques have recently emerged. Some of the more commonly used removal procedures including vacuum blasting, chemical stripping, scarifiers, grinders, sanders, etc. will be reviewed. Specific emphasis will be placed upon mode of application, positive and negative environmental aspects, and varying emissions generated. Personnel sampling data will be discussed with respect to associated personal protective equipment impact to derive the most cost productive environmentally conscious alternatives.

  10. Communication: Minimum in the thermal conductivity of supercooled water: A computer simulation study

    SciTech Connect (OSTI)

    Bresme, F., E-mail: f.bresme@imperial.ac.uk [Chemical Physics Section, Department of Chemistry, Imperial College, London SW7 2AZ, United Kingdom and Department of Chemistry, Norwegian University of Science and Technology, Trondheim 7491 (Norway); Biddle, J. W.; Sengers, J. V.; Anisimov, M. A. [Institute for Physical Science and Technology, and Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742 (United States)] [Institute for Physical Science and Technology, and Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742 (United States)

    2014-04-28

    We report the results of a computer simulation study of the thermodynamic properties and the thermal conductivity of supercooled water as a function of pressure and temperature using the TIP4P-2005 water model. The thermodynamic properties can be represented by a two-structure equation of state consistent with the presence of a liquid-liquid critical point in the supercooled region. Our simulations confirm the presence of a minimum in the thermal conductivity, not only at atmospheric pressure, as previously found for the TIP5P water model, but also at elevated pressures. This anomalous behavior of the thermal conductivity of supercooled water appears to be related to the maximum of the isothermal compressibility or the minimum of the speed of sound. However, the magnitudes of the simulated thermal conductivities are sensitive to the water model adopted and appear to be significantly larger than the experimental thermal conductivities of real water at low temperatures.

  11. Chow Time 

    E-Print Network [OSTI]

    Unknown

    2011-09-05

    -1 THE PREDICTION OF BUS ARRIVAL TIME USING AUTOMATIC VEHICLE LOCATION SYSTEMS DATA A Dissertation by RAN HEE JEONG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of DOCTOR OF PHILOSOPHY December 2004 Major Subject: Civil Engineering THE PREDICTION OF BUS ARRIVAL TIME USING AUTOMATIC VEHICLE LOCATION SYSTEMS DATA A Dissertation by RAN HEE JEONG Submitted to Texas A...

  12. Matter Wave Radiation Leading to Matter Teleportation

    E-Print Network [OSTI]

    Yong-Yi Huang

    2015-02-12

    The concept of matter wave radiation is put forward, and its equation is established for the first time. The formalism solution shows that the probability density is a function of displacement and time. A free particle and a two-level system are reinvestigated considering the effect of matter wave radiation. Three feasible experimental designs, especially a modified Stern-Gerlach setup, are proposed to verify the existence of matter wave radiation. Matter wave radiation effect in relativity has been formulated in only a raw formulae, which offers another explanation of Lamb shift. A possible mechanics of matter teleportation is predicted due to the effect of matter wave radiation.

  13. Estimate of Technical Potential for Minimum Efficiency Performance Standards in 13 Major World Economies

    SciTech Connect (OSTI)

    Letschert, Virginie; Desroches, Louis-Benoit; Ke, Jing; McNeil, Michael

    2012-07-01

    As part of the ongoing effort to estimate the foreseeable impacts of aggressive minimum efficiency performance standards (MEPS) programs in the world’s major economies, Lawrence Berkeley National Laboratory (LBNL) has developed a scenario to analyze the technical potential of MEPS in 13 major economies around the world1 . The “best available technology” (BAT) scenario seeks to determine the maximum potential savings that would result from diffusion of the most efficient available technologies in these major economies.

  14. LIGHT SUBGRAPHS IN PLANAR GRAPHS OF MINIMUM DEGREE 4 AND EDGE-DEGREE 9

    E-Print Network [OSTI]

    Mohar, Bojan

    LIGHT SUBGRAPHS IN PLANAR GRAPHS OF MINIMUM DEGREE 4 AND EDGE-DEGREE 9 B. MOHAR , R. SKREKOVSKI vertices of degree 4 are adjacent. A graph H is light in G if there is a constant w such that every graph is w. Then we also write w(H) w. It is proved that the cycle Cs is light if and only if 3 s 6, where

  15. Multiple output timing and trigger generator

    SciTech Connect (OSTI)

    Wheat, Robert M. [Los Alamos National Laboratory; Dale, Gregory E [Los Alamos National Laboratory

    2009-01-01

    In support of the development of a multiple stage pulse modulator at the Los Alamos National Laboratory, we have developed a first generation, multiple output timing and trigger generator. Exploiting Commercial Off The Shelf (COTS) Micro Controller Units (MCU's), the timing and trigger generator provides 32 independent outputs with a timing resolution of about 500 ns. The timing and trigger generator system is comprised of two MCU boards and a single PC. One of the MCU boards performs the functions of the timing and signal generation (the timing controller) while the second MCU board accepts commands from the PC and provides the timing instructions to the timing controller. The PC provides the user interface for adjusting the on and off timing for each of the output signals. This system provides 32 output or timing signals which can be pre-programmed to be in an on or off state for each of 64 time steps. The width or duration of each of the 64 time steps is programmable from 2 {micro}s to 2.5 ms with a minimum time resolution of 500 ns. The repetition rate of the programmed pulse train is only limited by the time duration of the programmed event. This paper describes the design and function of the timing and trigger generator system and software including test results and measurements.

  16. Solid phase stability of a double-minimum interaction potential system

    SciTech Connect (OSTI)

    Suematsu, Ayumi; Yoshimori, Akira, E-mail: a.yoshimori@cmt.phys.kyushu-u.ac.jp; Saiki, Masafumi; Matsui, Jun [Department of Physics, Kyushu University, Fukuoka 812-8581 (Japan); Odagaki, Takashi [School of Science and Engineering, Tokyo Denki University, Hatoyama, Saitama 350-0394 (Japan)

    2014-06-28

    We study phase stability of a system with double-minimum interaction potential in a wide range of parameters by a thermodynamic perturbation theory. The present double-minimum potential is the Lennard-Jones-Gauss potential, which has a Gaussian pocket as well as a standard Lennard-Jones minimum. As a function of the depth and position of the Gaussian pocket in the potential, we determine the coexistence pressure of crystals (fcc and bcc). We show that the fcc crystallizes even at zero pressure when the position of the Gaussian pocket is coincident with the first or third nearest neighbor site of the fcc crystal. The bcc crystal is more stable than the fcc crystal when the position of the Gaussian pocket is coincident with the second nearest neighbor sites of the bcc crystal. The stable crystal structure is determined by the position of the Gaussian pocket. These results show that we can control the stability of the solid phase by tuning the potential function.

  17. Free Magnetic Energy in Solar Active Regions above the Minimum-Energy Relaxed State

    E-Print Network [OSTI]

    S. Regnier; E. R. Priest

    2008-05-12

    To understand the physics of solar flares, including the local reorganisation of the magnetic field and the acceleration of energetic particles, we have first to estimate the free magnetic energy available for such phenomena, which can be converted into kinetic and thermal energy. The free magnetic energy is the excess energy of a magnetic configuration compared to the minimum-energy state, which is a linear force-free field if the magnetic helicity of the configuration is conserved. We investigate the values of the free magnetic energy estimated from either the excess energy in extrapolated fields or the magnetic virial theorem. For four different active regions, we have reconstructed the nonlinear force-free field and the linear force-free field corresponding to the minimum-energy state. The free magnetic energies are then computed. From the energy budget and the observed magnetic activity in the active region, we conclude that the free energy above the minimum-energy state gives a better estimate and more insights into the flare process than the free energy above the potential field state.

  18. Testing for Lead Poisoning Are we testing the right kids?

    E-Print Network [OSTI]

    Testing for Lead Poisoning Are we testing the right kids? City of Atlanta 2005 September 25, 2006September 25, 2006 Ambarish Vaidyanathan, MSEnvE Forrest Staley, MUP, MPHc #12;Objective To assess lead testing of children at high risk for lead poisoning in the city of Atlanta #12;Rationale · Childhood Lead

  19. Lead Exposure Management Plan 1.0. Policy

    E-Print Network [OSTI]

    de Lijser, Peter

    Lead Exposure Management Plan 1.0. Policy CSUF has developed the Lead Exposure Management Plan to reduce occupational and environmental exposure to lead, a potent neurotoxin and carcinogen that causes considers the nature of the task involved, confirmed and presumed exposures, and the lead content

  20. Faculty of Education LEAD Teacher Candidate and Associate Handbook1

    E-Print Network [OSTI]

    Faculty of Education LEAD Teacher Candidate and Associate Handbook1 Welcome to the LEAD "Field Experience" Welcome to the LEAD field experience component of the program. Past graduates often describe Teacher/Mentors often report that the presence of LEAD teacher candidates in their classroom adds

  1. Modeling and centralization of strategic inventory for repairable and long lead-time spare parts

    E-Print Network [OSTI]

    Duncan, Tyeliah Elaine

    2011-01-01

    This thesis develops an optimal inventory model for repairable and long leadtime spare parts for an Engine overhaul business. In addition, it presents a business case for centralization of inventory. Pratt & Whitney purchased ...

  2. Asymptotic Optimality of Constant-Order Policies for Lost Sales Inventory Models with Large Lead Times

    E-Print Network [OSTI]

    Goldberg, David A.

    Sciences, IBM T.J. Watson Research Center, e-mail: yingdong@us.ibm.com § Business Analytics and Mathematical Sciences, IBM T.J. Watson Research Center, e-mail: mxsharma@us.ibm.com ¶ Business Analytics and Mathematical Sciences, IBM T.J. Watson Research Center, e-mail: mss@us.ibm.com 1 #12;([35, 34, 12

  3. Real-time Pricing Leading to Optimal Operation under Distributed Decision Makings

    E-Print Network [OSTI]

    Hespanha, João Pedro

    such as renewable, micro-combined heat and power systems as well as energy storage systems such as batteries and development on the future power grid in which small but variety and a huge number of distributed generators, since the legacy power grid is intended for delivering energy from centralized power generators

  4. Exploration of Opportunities to Reduce Lead Times for Engineered-to-Order Products

    E-Print Network [OSTI]

    Tommelein, Iris D.

    for Engineered-To-Order (ETO) products. This research applies Transformation-Flow-Value (TFV) theory and lean not only in the procurement phase but also in the design and manufacturing phases, e.g., by forcing people

  5. 1 billion times brighter than the sun: Will Jeff Lab's beam lead...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    articles.dailypress.com2011-01-17newsdp-nws-cp-jlab-laser-201101161scientists-free-electron-laser-facility-p... Submitted: Thursday, January 20, 2011...

  6. DOE Awards 265 Million Hours of Supercomputing Time to Advance Leading

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electric vehicle10 DOE ASSESSMENTathasBestI) April 2012|Scientific

  7. The remediation of lead contaminated soils using solvent extraction chelation techniques. Final report

    SciTech Connect (OSTI)

    Price, M.; Hanson, A.T.; Rudd, B.; Pickins, D.; Krause, K.

    1998-08-01

    This report describes preliminary work leading to the development of an innovative technology for treating a mixed waste problem at Los Alamos National Laboratory (LANL). The specific problem being addressed by this research is the result of research activity at the Meson Physics Facility (LAMPH). The LAMPH facility conducts high energy neutron research. Lead BB`s were placed in containers and used as shielding during experiments.This lead was stored in piles on the ground when it was not in use, and it sometimes sat for extended periods of time, perhaps as long as 20 years. The lead was mobilized overtime, and contaminated the underlying soil. Because of the neutron bombardment, a portion of the lead {sup 207}Pb became radioactive {sup 210}Pb, and the lead became both a listed waste and radioactive, which classified it as a mixed waste. The contaminated soil has been removed from the site and placed in drums for storage until a suitable treatment technology can be identified. The contents of the barrels consists of a mixture of lead contaminated soil and lead BB`s.

  8. Get the lead out! removing lead-based paint on hydro plant structures

    SciTech Connect (OSTI)

    Johnson, M.L.

    1996-05-01

    This article describes a hydroblasting technology used to remove lead-based surface coatings from the steel associated with the flood gates at the Wirtz Dam. Using this technology and an advanced moisture-cured urethane coating, the Lower Colorado River Authority was able to save more than $250,000 in materials, labor, and waste disposal costs.

  9. Ultrasound in lead-bismuth eutectic

    SciTech Connect (OSTI)

    Dierckx, M.; Van Dyck, D.

    2011-07-01

    The Belgian Nuclear Research Centre (SCK.CEN) is in the process of designing MYRRHA, a new multi-purpose irradiation facility to replace the ageing BR2. MYRRHA is a fast spectrum reactor cooled with lead-bismuth eutectic (LBE). As liquid metal is opaque to visual light, ultrasonic measurement techniques are selected to fulfill essential tasks that, according to our assessment, will be demanded by licensing authorities, in particular: fuel assembly identification and localization of a lost fuel assembly. To that end, a considerable research effort at SCK.CEN is devoted to study ultrasonic propagation in LBE. As ultrasonic experiments in LBE are elaborate and expensive to set up, we are particularly interested in to what extent experiments in water can be extrapolated to LBE - one of the main focuses of this article. We describe and present results of a first experiment with this goal which shows that the signal to noise ratio is better in LBE and that we even see small diffuse reflections up to 40 deg. off normal. On the other hand, we do not see internal reflections in stainless steel objects in LBE which we do in water. Therefore, we conclude that experiments in water can be used to validate algorithms for LBE on the condition that they do not rely on internal reflections. We also present solutions to tackle the essential tasks: fuel assembly identification and lost object localization. The requirements for the ultrasonic equipment implementing these solutions are also discussed. (authors)

  10. Exact solutions for time-optimal control of spin I=1 by NMR

    E-Print Network [OSTI]

    V. P. Shauro

    2015-06-04

    We consider the problem of time-optimal control of quadrupole nucleus with the spin I=1 by NMR. In contrast to the conventional methods based on selective pulses, the control is implemented using nonselective pulses separated by free evolution intervals. Using the Cartan decomposition, the system of equations is obtained for finding parameters of a control field. Partial time-optimal solutions for the important single-qutrit gates (selective rotations and quantum Fourier transform) are found. The strong dependence of minimum gate implementation times on global phase of the gate is observed. The analytical values of minimum times are consistent with the numerical data.

  11. DMSP F8 observations of the mid-latitude and low-latitude topside ionosphere near solar minimum

    SciTech Connect (OSTI)

    Greenspan, M.E.; Hughes, W.J. [Boston Univ., MA (United States)] [Boston Univ., MA (United States); [Univ. of Maryland, College Park, MD (United States); Burke, W.J.; Rich, F.J. [Hanscom Air Force Base, Bedford, MA (United States)] [Hanscom Air Force Base, Bedford, MA (United States); Heelis, R.A. [Univ. of Texas, Dallas, TX (United States)] [Univ. of Texas, Dallas, TX (United States)

    1994-03-01

    The retarding potential analyzer on the DMSP F8 satellite measured ion density, composition, temperature, and ram flow velocity at 840-km altitude near the dawn and dusk meridians close to solar minimum. Nine days of data were selected for study to represent the summer and winter solstices and the autumnal equinox under quiet, moderately active, and disturbed geomagnetic conditions. The observations revealed extensive regions of light-ion dominance along both the dawn and dusk legs of the DMSP F8 orbit. These regions showed seasonal, longitudinal, and geomagnetic control, with light ions commonly predominating in places where the subsatellite ionosphere was relatively cold. Field-aligned plasma flows also were detected. In the morning, ions flowed toward the equator from both sides. In the evening, DMSP F8 detected flows that either diverged away from the equator or were directed toward the northern hemisphere. The effects of diurnal variations in plasma pressure gradients in the ionosphere and plasmasphere, momentum coupling between neutral winds and ions at the feet of field lines, and E {times} B drifts qualitatively explain most features of these composition and velocity measurements. 23 refs., 5 figs., 2 tabs.

  12. QCD analysis and effective temperature of direct photons in lead-lead collisions at the LHC

    E-Print Network [OSTI]

    M. Klasen; C. Klein-Bösing; F. König; J. P. Wessels

    2014-09-11

    We present a systematic theoretical analysis of the ALICE measurement of low-$p_T$ direct-photon production in central lead-lead collisions at the LHC with a centre-of-mass energy of $\\sqrt{s_{NN}}=2.76$ TeV. Using next-to-leading order of perturbative QCD, we compute the relative contributions to prompt-photon production from different initial and final states and the theoretical uncertainties coming from independent variations of the renormalisation and factorisation scales, the nuclear parton densities and the fragmentation functions. Based on different fits to the unsubtracted and prompt-photon subtracted ALICE data, we consistently find an exponential, possibly thermal, photon spectrum from the quark-gluon plasma (or hot medium) with slope $T=304\\pm 58$ MeV and $309\\pm64$ MeV at $p_T\\in[0.8;2.2]$ GeV and $p_T\\in[1.5;3.5]$ GeV as well as a power-law ($p_T^{-4}$) behavior for $p_T>4$ GeV as predicted by QCD hard scattering.

  13. A Mandated Minimum Competency Testing Program and Its Impact on Learning Disabled Students: Curricular Validity and Comparative Performances

    E-Print Network [OSTI]

    Meyen, Edward L.; Alley, Gordon R.; Scannell, Dale P.; Harnden, G. Mack; Miller, Kelly F.

    1982-06-01

    In this study, LD specialists, regular class teachers, and parents of LD students judged that the objectives of the Kansas Minimum Competency Specifications prescribed for nonhandicapped students were applicable to LD ...

  14. Metrika, Volume 27, 1980, page 43-70. 9 Vienna. The Minimum Distance Method of Testing 1 )

    E-Print Network [OSTI]

    Pollard, David

    on leavefrom Yale University,at the Ruhr-UniversitiitBochum. 2) David Pollard, YaleUniversity, Department of Statistics Box 2179 YaleStation, New Haven, Conneticut 06520, U.S.A. #12;44 D. Pollard minimum distance

  15. IEEETRANSACITONSON INFORMATIONTHEORY,VOL. 1~426,NO. 3, MAY 1980 305 Ternary Codes of Minimum Weight 6 and the

    E-Print Network [OSTI]

    Sloane, Neil J. A.

    , Inc., Room 2C-363, Murray Hill, NJ 07974. H. N. Ward is with the Mathematics Department, University. SLOANE, FELLOW, IEEE, AND HAROLD N. WARD Abstmct-Self-orthogonal ternary codes of minimum weight 3 may

  16. The effect of sand grain size distribution on the minimum oil saturation necessary to support in-situ combustion 

    E-Print Network [OSTI]

    Daniel, William Marvin

    1973-01-01

    THE EFFECT OF SAND GRAIN SIZE DISTRIBUTION ON THE MINIMUM OIL SATURATION NECESSARY TO SUPPORT IN-SITU COMBUSTION A Thesis by WILLIAM MARVIN DANIEL Submitted to the Graduate College of Texas ARM University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE May 1973 Major Subject: Petroleum. Engineering THE EFFECT OF SAND GRAIN SIZE DISTRIBUTION ON THE MINIMUM OIL SATURATION NECESSARY TO SUPPORT IN-SITU COMBUSTION A Thesis by WILLIAM MARVIN DANIEL Approved...

  17. OCRWM Selects Sandia as Lead Laboratory | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    OCRWM Selects Sandia as Lead Laboratory OCRWM Selects Sandia as Lead Laboratory January 18, 2006 - 10:45am Addthis Also reserves building at Idaho National Laboratory as future...

  18. New Eligibility Guidelines Lead to Increase in LM's EEOICPA Requests...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    New Eligibility Guidelines Lead to Increase in LM's EEOICPA Requests for FY 2014 New Eligibility Guidelines Lead to Increase in LM's EEOICPA Requests for FY 2014 January 14, 2015 -...

  19. Dayrl Briggs Task Leader/Lead Cleanroom Engineer

    E-Print Network [OSTI]

    Pennycook, Steve

    Dayrl Briggs Task Leader/Lead Cleanroom Engineer Nanofabrication Research Laboratory Center Experience: 2006­Present Task Leader, Lead Cleanroom Engineer, Lab Space Manager Center for Nanophase sensitivity. Professional Activities 1. Cleanroom Technical Operations · Manage the daily operation of the NRL

  20. Systems Engineering Leading Indicators Guide, Version 1.0

    E-Print Network [OSTI]

    Lean Advancement Initiative

    2013-10-31

    The Systems Engineering Leading Indicators guide set reflects the initial subset of possible indicators that were considered to be the highest priority for evaluating effectiveness before the fact. A leading indicator is ...

  1. A Study of Lead Ingot Cargoes from Ancient Mediterranean Shipwrecks 

    E-Print Network [OSTI]

    Brown, Heather Gail

    2011-10-21

    Lead is often relegated to a footnote or sidebar in the study of ancient metals. However, the hundreds of lead ingots discovered in underwater sites over the past half-century have attested to the widespread production and ...

  2. Anaerobic microbial dissolution of lead and production of organic acids

    DOE Patents [OSTI]

    Francis, A.J.; Dodge, C.; Chendrayan, K.

    1986-02-28

    The present invention relates to a method of solubilizing lead, in the form of lead oxide, found in industrial wastes, before these wastes are dumped into the environment. The lead is solubilized by dissolving the lead oxide in the wastes through contact with an anaerobic bacterial culture containing the bacterium ATCC No. 53464. The solubilized lead can then be removed from the wastes by chemical separation. It could also be removed by extending the contact period with the bacterial culture. As the culture grows, the solubilized lead is removed from the wastes by bioaccumulation by the microorganism or by immobilization by a polymer-like material produced by the microorganism. At this point, the lead is then removed from the wastes when the waste material is separated from the bacterial culture. If desired, the bacterial culture could be digested at this point to yield relatively pure lead for further industrial use.

  3. Ames Laboratory to Lead New Research Effort to Address Shortages...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ames Laboratory to Lead New Research Effort to Address Shortages in Rare Earth and Other Critical Materials Ames Laboratory to Lead New Research Effort to Address Shortages in Rare...

  4. Distributed Wind Market Report: Small Turbines Lead to Big Growth...

    Energy Savers [EERE]

    Distributed Wind Market Report: Small Turbines Lead to Big Growth in Exports Distributed Wind Market Report: Small Turbines Lead to Big Growth in Exports August 18, 2014 - 12:13pm...

  5. Solar Decathlon Team Leading the Way Toward Sustainable Living...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Solar Decathlon Team Leading the Way Toward Sustainable Living, Even in the Wake of Disasters Solar Decathlon Team Leading the Way Toward Sustainable Living, Even in the Wake of...

  6. Spotlight on Rutland County, Vermont: How Local Ties Lead to...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Rutland County, Vermont: How Local Ties Lead to Local Wins Spotlight on Rutland County, Vermont: How Local Ties Lead to Local Wins Spotlight on Rutland County, Vermont: How Local...

  7. Leading by Example on Climate Change: Our New Federal Sustainability...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Leading by Example on Climate Change: Our New Federal Sustainability Plan Leading by Example on Climate Change: Our New Federal Sustainability Plan March 19, 2015 - 3:15pm Addthis...

  8. Fatal pediatric poisoning from leaded paint--Wisconsin, 1990

    SciTech Connect (OSTI)

    Not Available

    1991-03-29

    Although fatal lead poisoning among children occurs rarely in the United States, it represents a medical and public health emergency. This report summarizes the investigation of a child who died from poisoning associated with ingestion of lead-based paint.

  9. MEASUREMENT OF THE SHOCK-HEATED MELT CURVE OF LEAD USING PYROMETRY AND REFLECTOMETRY

    SciTech Connect (OSTI)

    D. Partouche-Sebban and J. L. Pelissier, Commissariat a` l'Energie Atomique,; F. G. Abeyta, Los Alamos National Laboratory; W. W. Anderson, Los Alamos National Laboratory; M. E. Byers, Los Alamos National Laboratory; D. Dennis-Koller, Los Alamos National Laboratory; J. S. Esparza, Los Alamos National Laboratory; S. D. Borror, Bechtel Nevada; C. A. Kruschwitz, Bechtel Nevada

    2004-01-01

    Data on the high-pressure melting temperatures of metals is of great interest in several fields of physics including geophysics. Measuring melt curves is difficult but can be performed in static experiments (with laser-heated diamond-anvil cells for instance) or dynamically (i.e., using shock experiments). However, at the present time, both experimental and theoretical results for the melt curve of lead are at too much variance to be considered definitive. As a result, we decided to perform a series of shock experiments designed to provide a measurement of the melt curve of lead up to about 50 GPa in pressure. At the same time, we developed and fielded a new reflectivity diagnostic, using it to make measurements on tin. The results show that the melt curve of lead is somewhat higher than the one previously obtained with static compression and heating techniques.

  10. Commercial HVAC and Water-Heating Equipment Minimum Efficiency Standards in the United States

    SciTech Connect (OSTI)

    Nasseri, Cyrus H.; Somasundaram, Sriram

    2001-08-01

    ABSTRACT In 1992, Federal legislation mandated that the U.S. Department of Energy (DOE) set the efficiency levels in the then-current ASHRAE Standard 90.1 as mandatory minimums for heating, ventilating, and air-conditioning (HVAC) and service water-heating (SWH) equipment sold in the U.S. market, as well as a process for revising the minimum equipment efficiency standards to comply with requirements in an updated Standard 90.1. Because Standard 90.1 was updated in October 1999 (Standard 90.1-1999), DOE is now undertaking a rulemaking process for these equipment categories. In January 2001, DOE published a final rule adopting Standard 90.1-1999 levels as uniform national standards for 18 product categories of commercial HVAC and SWH equipment. For 11 other categories of commercial products, DOE has signaled its intention to consider more stringent standards than those adopted by the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE). DOE has now initiated a formal rulemaking process to further analyze these equipment categories.

  11. Minimum separation distances for natural gas pipeline and boilers in the 300 area, Hanford Site

    SciTech Connect (OSTI)

    Daling, P.M.; Graham, T.M.

    1997-08-01

    The U.S. Department of Energy (DOE) is proposing actions to reduce energy expenditures and improve energy system reliability at the 300 Area of the Hanford Site. These actions include replacing the centralized heating system with heating units for individual buildings or groups of buildings, constructing a new natural gas distribution system to provide a fuel source for many of these units, and constructing a central control building to operate and maintain the system. The individual heating units will include steam boilers that are to be housed in individual annex buildings located at some distance away from nearby 300 Area nuclear facilities. This analysis develops the basis for siting the package boilers and natural gas distribution systems to be used to supply steam to 300 Area nuclear facilities. The effects of four potential fire and explosion scenarios involving the boiler and natural gas pipeline were quantified to determine minimum separation distances that would reduce the risks to nearby nuclear facilities. The resulting minimum separation distances are shown in Table ES.1.

  12. Title: Early Warning of Network Catastrophes Lead Laboratory: ITL

    E-Print Network [OSTI]

    1 Title: Early Warning of Network Catastrophes Lead Laboratory: ITL Proposal Champions: Kevin Mills, and content distribution networks, in which interactions among millions of components lead to dynamic global drive systems from normal operating ranges to congested states, leading to widespread outages

  13. The Global Anthropogenic Lead Experiment Earth, Atmospheric and Planetary Sciences

    E-Print Network [OSTI]

    Einat, Aharonov

    The Global Anthropogenic Lead Experiment Ed Boyle Earth, Atmospheric and Planetary Sciences Reuer Rick Kayser Boyle Lab, arriving in Rio at the end of EN 367 #12;The Global Anthropogenic Lead Experiment · Lead is a volatile element and it is emitted by high temperature industrial activities (smelting

  14. GUIDELINES FOR THE IDENTIFICATION AND MANAGEMENT OF LEAD EXPOSURE IN

    E-Print Network [OSTI]

    GUIDELINES FOR THE IDENTIFICATION AND MANAGEMENT OF LEAD EXPOSURE IN PREGNANT AND LACTATING WOMEN;GUIDELINES FOR THE IDENTIFICATION AND MANAGEMENT OF LEAD EXPOSURE IN PREGNANT AND LACTATING WOMEN and Disease Registry Christopher Portier, PhD Director Healthy Homes and Lead Poisoning

  15. Regional Lead Agents and County Coordinators 2011 RESPONSIBILITY NAME COUNTY

    E-Print Network [OSTI]

    Bolding, M. Chad

    #12;Regional Lead Agents and County Coordinators 2011 RESPONSIBILITY NAME COUNTY REGION 1 Regional Lead Millie Davenport HGIC County Coordinator Matt Burns Pickens County Coordinator Marty Watt Anderson County Coordinator Morris Warner Oconee REGION 2 Regional Lead Danny Howard Greenville County Coordinator

  16. Foliar Lead Uptake by Lettuce Exposed to Atmospheric Fallouts

    E-Print Network [OSTI]

    Mailhes, Corinne

    Foliar Lead Uptake by Lettuce Exposed to Atmospheric Fallouts G A ¨E L L E U Z U , S O P H I E S O gardens near industrial plants. The mechanisms of foliar uptake of lead by lettuce (Lactuca sativa) exposed to the atmospheric fallouts of a lead-recycling plant were studied. After43daysofexposure

  17. THE LEAD AND COPPER RULE Anne Sandvig, HDR-EES

    E-Print Network [OSTI]

    Maynard, J. Barry

    THE LEAD AND COPPER RULE Anne Sandvig, HDR-EES 2008 Historical Background The 1986 Safe Drinking Water Act required the use of "lead-free" pipes, solders, pipe fittings or plumbing fixtures in the 1986 Amendment and were required to meet "voluntary standards." The term "lead-free" was defined

  18. FOR MORE INFORMATION, CONTACT: TP Straatsma, Initiative Lead

    E-Print Network [OSTI]

    FOR MORE INFORMATION, CONTACT: TP Straatsma, Initiative Lead 509-375-2802 tps@pnl.gov www.pnl.gov e Development of Exascale Algorithms for Molecular Modeling Lead investigator: Dr. Karol Kowalski Researchers Optimizations for Extreme Scale Systems Lead investigator: Dr. Daniel Chavarria Exascale systems will provide

  19. Lead User's theory adapted to services: Towards Service User's Toolkit

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Lead User's theory adapted to services: Towards Service User's Toolkit E. Stevens Prof under the perspective of networks and communities. Lead User's theory (LUT) focused mainly is to adapt lead user's theory and practice to the specific case of the intangible processes and services

  20. Overview of Lead Scale Formation and Solubility J. Barry Maynard

    E-Print Network [OSTI]

    Maynard, J. Barry

    Overview of Lead Scale Formation and Solubility J. Barry Maynard University of Cincinnati 2008 The response of lead source materials in premise and distribution systems to changes in water treatment. These determinations are particularly critical for lead compounds, of which there have been many reported. Knowledge

  1. Lead-Free Surface Finishes for Electronic Components

    E-Print Network [OSTI]

    Lead-Free Surface Finishes for Electronic Components: Tin Whisker Growth METALS This project degraded by the switch to lead- free technology. In particular, the state of compressive stress and the localized creep response (whisker growth) of tin-based lead-free electrodeposits are being measured

  2. Chapter 2. Assessment and Remediation of Residential Lead Exposure

    E-Print Network [OSTI]

    Chapter 2. Assessment and Remediation of Residential Lead Exposure Prepared by Thomas D. Matte, MD of Residential Lead Exposure Table 2.1. Summary of Recommendations for Assessment and Remediation of Residential Lead Exposure Make prompt and effective environmental management for children with EBLLs the highest

  3. www.bitmix.co.ui .NET DEVELOPMENT LEAD

    E-Print Network [OSTI]

    Kasparian, Azniv

    iCt www.bitmix.co.ui .NET DEVELOPMENT LEAD We are looking for motivated, positive team players. Responsibilities: - Lead development of an innovative set of services and tools in the mobile space; - Be ready to lead on all angles, including people, process, and technology; - Get the best from a true team

  4. RECORD OF DESIGNATED SUBSTANCE ASSESSMENT SUBSTANCE: LEAD (plates and Gamma

    E-Print Network [OSTI]

    Thompson, Michael

    RECORD OF DESIGNATED SUBSTANCE ASSESSMENT SUBSTANCE: LEAD (plates and Gamma Source holder) DATE Direct / Indirect Per Month / Year Lead Mechanical Indirect No change Engineering CONCLUSIONS Read the plant? Product Title: Lead Type of Container: none Size of Container: not applicable 2. Is this form

  5. High Frequency Lead/lag Relationships Empirical facts

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    High Frequency Lead/lag Relationships Empirical facts Nicolas Huth Frédéric Abergel November 28, 2011 Abstract Lead/lag relationships are an important stylized fact at high frequency. Some assets, narrow bid/ask spread, small volatility, high turnover) tend to lead smaller stocks. However, the most

  6. The Value of Lead Logistics Services Oliver Schneider1

    E-Print Network [OSTI]

    Boyer, Edmond

    The Value of Lead Logistics Services Oliver Schneider1 , André Lindner2 1 ETH Zurich, Center Schindellegi, Switzerland andre.lindner@kuehne-nagel.com Abstract. Logistics Services are one of the most was developed in a collaborative action research project with a world leading provider of lead logistics

  7. Effect of sulfur isotopic composition of zinc and lead sulfides on the E. M. F. of electrochemical cells

    SciTech Connect (OSTI)

    Lusk, J.; Krouse, H.R.; Batts, B.D.

    1988-03-01

    A new effect is reported in which unexpectedly large voltages are produced by electrochemical cells containing sulfides at natural isotopic abundance levels. Room temperature experiments were undertaken to determine whether electrochemical cells employing silver bromide and silver beta alumina as solid electrolytes would be sufficiently sensitive to detect small variations in sulfur isotopic composition for zinc and lead sulfides. Voltages obtained for silver bromide cells tended to increase progressively over at least 20 days, and increased in a regular fashion with increasing differences in isotopic composition between charges. Voltages exceeding 150 mV were obtained for /sup delta/S/sup 3,4/ differences up to 85 per mil for zinc sulfide, but reached only about 20 mV for lead sulfide. Silver beta alumina cells with opposing zinc and lead sulfide charges yielded larger voltages and E.M.F. minimum corresponding to a +8(/plus minus/2) per mil difference. This value shows reasonable agreement with interpolated 20/degrees/C equilibrium values of between +7.5 to +9.8 obtained from the literature. Matured silver bromide cells with opposed zinc and lead sulfide charges behaved similarly but yielded lower voltages. Silver concentration cells of the opposed type are thus able to detect isotopic equilibrium and this will permit calibration of sulfur isotope thermometers down to unexpectedly low temperatures.

  8. Leading Up the Lexical Garden Path: Segmentation and Ambiguity in Spoken Word Recognition

    E-Print Network [OSTI]

    Davis, Matt

    Leading Up the Lexical Garden Path: Segmentation and Ambiguity in Spoken Word Recognition Matthew H-modal repetition priming experiments, traced the time course of recognition of words with onset embeddings (captain) and short words in contexts that match (cap tucked) or mismatch (cap looking) with longer words. Results

  9. Getting the lead out: Citizen involvement in the Williamsburg Bridge lead paint removal project

    SciTech Connect (OSTI)

    Forker, T.R.

    1997-08-01

    This paper examines the process and results of citizen involvement in developing new environmental control and compliance procedures used by the New York City Department of Transportation (NYC DOT) for lead paint removal on the Williamsburg Bridge and other structures. As a case study of the effects of public involvement in environmental decision-making, the study identifies and discusses the factors that produced failures or successes in satisfying the citizen`s concerns about health risks and the effectiveness of the selected pollution control technology.

  10. RHIC 12x150A current lead temperature controller: design and implementation

    SciTech Connect (OSTI)

    Mi, C.; Seberg, S.; Ganetis, Hamdi, K.; Louie, W.; Heppner, G.; Jamilkowski, J.; Bruno, D.; DiLieto, A.; Sirio, C.; Tuozzolo, J.; Sandberg, J.; Unger, K.

    2011-03-28

    There are 60 12 x 150A current leads distributed in six RHIC service buildings; each lead delivers power supply current from room temperature to cryogenic temperature in RHIC. Due to the humid environment, condensation occurs frequently and ice forms quickly during operation, especially during an extensive storage period. These conditions generate warnings and alarms to which personnel must respond and establish temporary solutions to keep the machine operating. In here, we designed a temperature control system to avoid such situations. This paper discusses its design, implementation, and some results. There are six service buildings in the RHIC complex; each building has two valve boxes that transfer room-temperature current cables from the power supplies into superconducting leads, and then transport them into the RHIC tunnel. In there, the transition between the room-temperature lead into superconducting lead is critical and essential; smooth running during the physics store is crucial for the machine's continuing operation. One of the problems that often occurred previously was the icing of these current leads that could result in a potential leakage current onto ground, thereby preventing a continuous supply of physics store. Fig. 1 illustrates a typical example on a power lead. Among the modifications of the design of the valve box, we list below the new requirements for designing the temperature controller to prevent icing occurring: (1) Remotely control, monitor, and record each current lead's temperature in real time. Prevent icing or overheating of a power lead. (2) Include a temperature alarm for the high/low level threshold. In this paper we discuss the design, implementation, upgrades to, and operation of this new system.

  11. CBER-DETR Nevada Coincident and Leading Employment Benchmark Revisions in Employment Data Lead to Positive News

    E-Print Network [OSTI]

    Ahmad, Sajjad

    CBER-DETR Nevada Coincident and Leading Employment Indexes1 Benchmark Revisions in Employment Data Lead to Positive News The Nevada Coincident Employment Index measures the ups and downs of the Nevada economy using an index of employment variables. The Nevada Leading Employment Index also measures the ups

  12. Analysis of Minimum Efficiency Performance Standards for Residential General Service Lighting in Chile

    SciTech Connect (OSTI)

    Letschert, Virginie E.; McNeil, Michael A.; Leiva Ibanez, Francisco Humberto; Ruiz, Ana Maria; Pavon, Mariana; Hall, Stephen

    2011-06-01

    Minimum Efficiency Performance Standards (MEPS) have been chosen as part of Chile's national energy efficiency action plan. As a first MEPS, the Ministry of Energy has decided to focus on a regulation for lighting that would ban the sale of inefficient bulbs, effectively phasing out the use of incandescent lamps. Following major economies such as the US (EISA, 2007) , the EU (Ecodesign, 2009) and Australia (AS/NZS, 2008) who planned a phase out based on minimum efficacy requirements, the Ministry of Energy has undertaken the impact analysis of a MEPS on the residential lighting sector. Fundacion Chile (FC) and Lawrence Berkeley National Laboratory (LBNL) collaborated with the Ministry of Energy and the National Energy Efficiency Program (Programa Pais de Eficiencia Energetica, or PPEE) in order to produce a techno-economic analysis of this future policy measure. LBNL has developed for CLASP (CLASP, 2007) a spreadsheet tool called the Policy Analysis Modeling System (PAMS) that allows for evaluation of costs and benefits at the consumer level but also a wide range of impacts at the national level, such as energy savings, net present value of savings, greenhouse gas (CO2) emission reductions and avoided capacity generation due to a specific policy. Because historically Chile has followed European schemes in energy efficiency programs (test procedures, labelling program definitions), we take the Ecodesign commission regulation No 244/2009 as a starting point when defining our phase out program, which means a tiered phase out based on minimum efficacy per lumen category. The following data were collected in order to perform the techno-economic analysis: (1) Retail prices, efficiency and wattage category in the current market, (2) Usage data (hours of lamp use per day), and (3) Stock data, penetration of efficient lamps in the market. Using these data, PAMS calculates the costs and benefits of efficiency standards from two distinct but related perspectives: (1) The Life-Cycle Cost (LCC) calculation examines costs and benefits from the perspective of the individual household; and (2) The National Perspective projects the total national costs and benefits including both financial benefits, and energy savings and environmental benefits. The national perspective calculations are called the National Energy Savings (NES) and the Net Present Value (NPV) calculations. PAMS also calculate total emission mitigation and avoided generation capacity. This paper describes the data and methodology used in PAMS and presents the results of the proposed phase out of incandescent bulbs in Chile.

  13. Testing Hardy nonlocality proof with genuine energy-time entanglement

    E-Print Network [OSTI]

    G. Vallone; I. Gianani; E. B. Inostroza; C. Saavedra; G. Lima; A. Cabello; P. Mataloni

    2011-01-27

    We show two experimental realizations of Hardy ladder test of quantum nonlocality using energy-time correlated photons, following the scheme proposed by A. Cabello \\emph{et al.} [Phys. Rev. Lett. \\textbf{102}, 040401 (2009)]. Unlike, previous energy-time Bell experiments, these tests require precise tailored nonmaximally entangled states. One of them is equivalent to the two-setting two-outcome Bell test requiring a minimum detection efficiency. The reported experiments are still affected by the locality and detection loopholes, but are free of the post-selection loophole of previous energy-time and time-bin Bell tests.

  14. Dispatch R427 Time perception: Brain time or event time?

    E-Print Network [OSTI]

    Johnston, Alan

    Dispatch R427 Time perception: Brain time or event time? Alan Johnston* and Shin'ya Nishida Recent experiments show that synchronous events can appear to an observer to occur at different times. Neural processing time delays are offered as an explanation of these temporal illusions, but equating perceived time

  15. Comparative Magnetic Minima: Characterizing quiet times in the Sun and stars

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    Comparative Magnetic Minima: Characterizing quiet times in the Sun and stars Proceedings IAU minima. We find that: the Sun spends about most of the time at moderate activity, 1/6 in a Grand minimum observational constraints on long-term solar and stellar dynamo models. Keywords. Sun: activity, (Sun:) solar

  16. CONSTRAINTS ON THE MINIMUM ELECTRON LORENTZ FACTOR AND MATTER CONTENT OF JETS FOR A SAMPLE OF BRIGHT FERMI BLAZARS

    SciTech Connect (OSTI)

    Kang, Shi-Ju; Wu, Qingwen; Chen, Liang

    2014-11-01

    We fit (quasi-)simultaneous multi-waveband spectral energy distributions for a sample of low-synchrotron-peaked (LSP) blazars with a one-zone leptonic model. The seed photons that predominantly come from the broad line region (BLR) and infrared (IR) molecular torus are considered in the context of an external Compton process. We find that modeling with IR seed photons is systematically better than that with BLR photons based on a ?{sup 2} test, which suggests that ?-ray-emitting regions are most likely found outside the BLR. The minimum electron Lorentz factor, ?{sub min}, is constrained from the modeling of these LSP blazars with good soft X-ray data (ranging from 5 to 160 with a median value of 55), which plays a key role in jet power estimation. Assuming a one-to-one ratio of protons to electrons, we find that the jet power for LSP blazars is systematically higher than that of FR II radio galaxies at a 151 MHz radio luminosity, L {sub 151} {sub MHz} even though FR IIs are regarded as the same as LSP blazars in a unification scheme except at the jet viewing angle. A possible reason for this is that there are some e {sup ±} pairs in the jets of these blazars. If this is the case, we find that the number density of e {sup ±} pairs should be several times higher than that of e {sup –}-p pairs by assuming the jet power is the same for LSP blazars and FR IIs at the given L {sub 151} {sub MHz}.

  17. Lead iron phosphate glass as a containment medium for disposal of high-level nuclear waste

    DOE Patents [OSTI]

    Boatner, Lynn A. (Oak Ridge, TN); Sales, Brian C. (Oak Ridge, TN)

    1989-01-01

    Lead-iron phosphate glasses containing a high level of Fe.sub.2 O.sub.3 for use as a storage medium for high-level radioactive nuclear waste. By combining lead-iron phosphate glass with various types of simulated high-level nuclear waste, a highly corrosion resistant, homogeneous, easily processed glass can be formed. For corroding solutions at 90.degree. C., with solution pH values in the range between 5 and 9, the corrosion rate of the lead-iron phosphate nuclear waste glass is at least 10.sup.2 to 10.sup.3 times lower than the corrosion rate of a comparable borosilicate nuclear waste glass. The presence of Fe.sub.2 O.sub.3 in forming the lead-iron phosphate glass is critical. Lead-iron phosphate nuclear waste glass can be prepared at temperatures as low as 800.degree. C., since they exhibit very low melt viscosities in the 800.degree. to 1050.degree. C. temperature range. These waste-loaded glasses do not readily devitrify at temperatures as high as 550.degree. C. and are not adversely affected by large doses of gamma radiation in H.sub.2 O at 135.degree. C. The lead-iron phosphate waste glasses can be prepared with minimal modification of the technology developed for processing borosilicate glass nuclear wasteforms.

  18. Time Management Managing Time and Tasks

    E-Print Network [OSTI]

    Kunkle, Tom

    Time Management Managing Time and Tasks What is time management? Time can't be managed ­ but you can manage the amount of time you use each day for fun, work, rest, and time spent with others. Why is time management important? You have responsibilities to yourself, to your family and friends, to your

  19. The turbulent cascade and proton heating in the solar wind during solar minimum

    SciTech Connect (OSTI)

    Coburn, Jesse T.; Smith, Charles W.; Vasquez, Bernard J.; Stawarz, Joshua E.; Forman, Miriam A.

    2013-06-13

    Solar wind measurements at 1 AU during the recent solar minimum and previous studies of solar maximum provide an opportunity to study the effects of the changing solar cycle on in situ heating. Our interest is to compare the levels of activity associated with turbulence and proton heating. Large-scale shears in the flow caused by transient activity are a source that drives turbulence that heats the solar wind, but as the solar cycle progresses the dynamics that drive the turbulence and heat the medium are likely to change. The application of third-moment theory to Advanced Composition Explorer (ACE) data gives the turbulent energy cascade rate which is not seen to vary with the solar cycle. Likewise, an empirical heating rate shows no significan changes in proton heating over the cycle.

  20. Possible Observation of Nuclear Reactor Neutrinos Near the Oscillation Absolute Minimum

    E-Print Network [OSTI]

    C. Bouchiat

    2003-04-27

    After a summary of the basic three neutrino oscillation formalism we review briefly our present empirical knowledge of the oscillation parameters and conclude that the 2-neutrinos model is adequate to describe the survival probability of the electronic neutrino P(nue->nue). Then we proceed to the evaluation of P(nue->nue) relative to the antineutrinos emitted by the nuclear power stations presently in operation along the the Rhone valley. We assume that a detector has been installed in a existing cavity located under the Mont Ventoux at a depth equivalent to 1500 m of water. We show that such an experiment would provide the opportunity to observe neutrinos near the oscillation absolute minimum. We end by a rough estimate of the counting rate.

  1. Automatic track recognition for large-angle minimum ionizing particles in nuclear emulsions

    E-Print Network [OSTI]

    T. Fukuda; S. Fukunaga; H. Ishida; T. Matsumoto; T. Matsuo; S. Mikado; S. Nishimura; S. Ogawa; H. Shibuya; J. Sudou; A. Ariga; S. Tufanli

    2014-12-19

    We previously developed an automatic track scanning system which enables the detection of large-angle nuclear fragments in the nuclear emulsion films of the OPERA experiment. As a next step, we have investigated this system's track recognition capability for large-angle minimum ionizing particles $(1.0 \\leq |tan \\theta| \\leq 3.5)$. This paper shows that, for such tracks, the system has a detection efficiency of 95$\\%$ or higher and reports the achieved angular accuracy of the automatically recognized tracks. This technology is of general purpose and will likely contribute not only to various analyses in the OPERA experiment, but also to future experiments, e.g. on low-energy neutrino and hadron interactions, or to future research on cosmic rays using nuclear emulsions carried by balloons.

  2. On the minimum dark matter mass testable by neutrinos from the Sun

    SciTech Connect (OSTI)

    Busoni, Giorgio; Simone, Andrea De; Huang, Wei-Chih E-mail: andrea.desimone@sissa.it

    2013-07-01

    We discuss a limitation on extracting bounds on the scattering cross section of dark matter with nucleons, using neutrinos from the Sun. If the dark matter particle is sufficiently light (less than about 4 GeV), the effect of evaporation is not negligible and the capture process goes in equilibrium with the evaporation. In this regime, the flux of solar neutrinos of dark matter origin becomes independent of the scattering cross section and therefore no constraint can be placed on it. We find the minimum values of dark matter masses for which the scattering cross section on nucleons can be probed using neutrinos from the Sun. We also provide simple and accurate fitting functions for all the relevant processes of GeV-scale dark matter in the Sun.

  3. Effects of Relativity Lead to"Warp Speed" Computations

    SciTech Connect (OSTI)

    Vay, J.-L.

    2007-11-01

    A scientist at Lawrence Berkeley National Laboratory has discovered that a previously unnoticed consequence of Einstein's special theory of relativity can lead to speedup of computer calculations by orders of magnitude when applied to the computer modeling of a certain class of physical systems. This new finding offers the possibility of tackling some problems in a much shorter time and with far more precision than was possible before, as well as studying some configurations in every detail for the first time. The basis of Einstein's theory is the principle of relativity, which states that the laws of physics are the same for all observers, whether the 'observer' is a turtle 'racing' with a rabbit, or a beam of particles moving at near light speed. From the invariance of the laws of physics, one may be tempted to infer that the complexity of a system is independent of the motion of the observer, and consequently, a computer simulation will require the same number of mathematical operations, independently of the reference frame that is used for the calculation. Length contraction and time dilation are well known consequences of the special theory of relativity which lead to very counterintuitive effects. An alien observing human activity through a telescope in a spaceship traveling in the Vicinity of the earth near the speed of light would see everything flattened in the direction of propagation of its spaceship (for him, the earth would have the shape of a pancake), while all motions on earth would appear extremely slow, slowed almost to a standstill. Conversely, a space scientist observing the alien through a telescope based on earth would see a flattened alien almost to a standstill in a flattened spaceship. Meanwhile, an astronaut sitting in a spaceship moving at some lower velocity than the alien spaceship with regard to earth might see both the alien spaceship and the earth flattened in the same proportion and the motion unfolding in each of them at the same speed. Let us now assume that each protagonist (the alien, the space scientist and the astronaut) is to run a computer simulation describing the motion of all of them in a single calculation. In order to model a physical system on a computer, scientists often divide space and time into small chunks. Since the computer must calculated some things for each chunk, having a large system containing numerous small chunks translates to long calculations requiring many computational steps on supercomputers. Let us assume that each protagonist of our intergalactic story uses the space and time slicing as described and chooses to perform the calculation in its own frame of reference. For the alien and the space scientist, the slicing of space and time results in an exceedingly large number of chunks, due to the wide disparity of spatial and time scales needed to describe both their own environment and motion together with the other extremely flattened environment and slowed motion. Since the disparity of scales is reduced for the astronaut, who is traveling at an intermediate velocity, the number of computer operations needed to complete the calculation in his frame of reference will be significantly lower, possibly by many orders of magnitude. Analogously, the new discovery at Lawrence Berkeley National Laboratory shows that there exists a frame of reference minimizing the number of computational operations needed for studying the interaction of beams of particles or light (lasers) interacting at, or near, light speed with other particles or with surrounding structures. Speedups ranging from ten to a million times or more are predicted for the modeling of beams interacting with electron clouds, such as those in the upcoming Large Hadron Collider 'atom smasher' accelerator at CERN (Switzerland), and in free electron lasers and tabletop laser wakefield accelerators. The discovery has surprised many physicists and was received initially with much skepticism. It sounded too much like a 'free lunch'. Yet, the demonstration of a speedup of a stunning one thousand times in a te

  4. Thirty-Year Solid Waste Generation Maximum and Minimum Forecast for SRS

    SciTech Connect (OSTI)

    Thomas, L.C.

    1994-10-01

    This report is the third phase (Phase III) of the Thirty-Year Solid Waste Generation Forecast for Facilities at the Savannah River Site (SRS). Phase I of the forecast, Thirty-Year Solid Waste Generation Forecast for Facilities at SRS, forecasts the yearly quantities of low-level waste (LLW), hazardous waste, mixed waste, and transuranic (TRU) wastes generated over the next 30 years by operations, decontamination and decommissioning and environmental restoration (ER) activities at the Savannah River Site. The Phase II report, Thirty-Year Solid Waste Generation Forecast by Treatability Group (U), provides a 30-year forecast by waste treatability group for operations, decontamination and decommissioning, and ER activities. In addition, a 30-year forecast by waste stream has been provided for operations in Appendix A of the Phase II report. The solid wastes stored or generated at SRS must be treated and disposed of in accordance with federal, state, and local laws and regulations. To evaluate, select, and justify the use of promising treatment technologies and to evaluate the potential impact to the environment, the generic waste categories described in the Phase I report were divided into smaller classifications with similar physical, chemical, and radiological characteristics. These smaller classifications, defined within the Phase II report as treatability groups, can then be used in the Waste Management Environmental Impact Statement process to evaluate treatment options. The waste generation forecasts in the Phase II report includes existing waste inventories. Existing waste inventories, which include waste streams from continuing operations and stored wastes from discontinued operations, were not included in the Phase I report. Maximum and minimum forecasts serve as upper and lower boundaries for waste generation. This report provides the maximum and minimum forecast by waste treatability group for operation, decontamination and decommissioning, and ER activities.

  5. Optimization of Operating Parameters for Minimum Mechanical Specific Energy in Drilling

    SciTech Connect (OSTI)

    Hamrick, Todd

    2011-05-25

    Efficiency in drilling is measured by Mechanical Specific Energy (MSE). MSE is the measure of the amount of energy input required to remove a unit volume of rock, expressed in units of energy input divided by volume removed. It can be expressed mathematically in terms of controllable parameters; Weight on Bit, Torque, Rate of Penetration, and RPM. It is well documented that minimizing MSE by optimizing controllable factors results in maximum Rate of Penetration. Current methods for computing MSE make it possible to minimize MSE in the field only through a trial-and-error process. This work makes it possible to compute the optimum drilling parameters that result in minimum MSE. The parameters that have been traditionally used to compute MSE are interdependent. Mathematical relationships between the parameters were established, and the conventional MSE equation was rewritten in terms of a single parameter, Weight on Bit, establishing a form that can be minimized mathematically. Once the optimum Weight on Bit was determined, the interdependent relationship that Weight on Bit has with Torque and Penetration per Revolution was used to determine optimum values for those parameters for a given drilling situation. The improved method was validated through laboratory experimentation and analysis of published data. Two rock types were subjected to four treatments each, and drilled in a controlled laboratory environment. The method was applied in each case, and the optimum parameters for minimum MSE were computed. The method demonstrated an accurate means to determine optimum drilling parameters of Weight on Bit, Torque, and Penetration per Revolution. A unique application of micro-cracking is also presented, which demonstrates that rock failure ahead of the bit is related to axial force more than to rotation speed.

  6. NEWLY DISCOVERED GLOBAL TEMPERATURE STRUCTURES IN THE QUIET SUN AT SOLAR MINIMUM

    SciTech Connect (OSTI)

    Huang Zhenguang; Frazin, Richard A.; Landi, Enrico; Manchester, Ward B.; Gombosi, Tamas I.; Vasquez, Alberto M.

    2012-08-20

    Magnetic loops are building blocks of the closed-field corona. While active region loops are readily seen in images taken at EUV and X-ray wavelengths, quiet-Sun (QS) loops are seldom identifiable and are therefore difficult to study on an individual basis. The first analysis of solar minimum (Carrington Rotation 2077) QS coronal loops utilizing a novel technique called the Michigan Loop Diagnostic Technique (MLDT) is presented. This technique combines Differential Emission Measure Tomography and a potential field source surface (PFSS) model, and consists of tracing PFSS field lines through the tomographic grid on which the local differential emission measure is determined. As a result, the electron temperature T{sub e} and density N{sub e} at each point along each individual field line can be obtained. Using data from STEREO/EUVI and SOHO/MDI, the MLDT identifies two types of QS loops in the corona: so-called up loops in which the temperature increases with height and so-called down loops in which the temperature decreases with height. Up loops are expected, however, down loops are a surprise, and furthermore, they are ubiquitous in the low-latitude corona. Up loops dominate the QS at higher latitudes. The MLDT allows independent determination of the empirical pressure and density scale heights, and the differences between the two remain to be explained. The down loops appear to be a newly discovered property of the solar minimum corona that may shed light on the physics of coronal heating. The results are shown to be robust to the calibration uncertainties of the EUVI instrument.

  7. Neighborhood level health risk assessment of lead paint removal activities from elevated steel bridges

    SciTech Connect (OSTI)

    Conway, R.F.; Cohen, J.T.; Bowers, T.

    1999-07-01

    The New York City Department of Transportation (NYCDOT) has adopted strict containment and monitoring procedures during paint removal activities on its bridges because of the increasing awareness about lead poisoning in children in urban environments and the potential risk of lead-based paint releases during those activities. NYCDOT owns nearly 800 bridges scattered throughout New York City. Before undertaking paint removal activities as part of its ongoing preventive maintenance and rehabilitation program, NYCDOT recently conducted an analysis to determine the public health risk posed to children living near them. The analysis the first of its kind to assess the actual public health risk potential during both routine operations and upset conditions, or accidental releases evaluated the total and incremental blood lead levels from paint removal activities on more than 5,000 children from 6 months to 6 years old. Increases in baseline blood lead levels were estimated using several models, including EPA's Integrated Exposure Uptake Biokinetic (IEUBK) Model. This model estimates steady-state blood lead levels in children, reflecting exposure to lead in multiple media over an extended period of time. Increases in lead exposure from paint removal activities in the area surrounding the bridges was estimated using EPA's Industrial Source Complex (ISC3) model to calculate ambient air and deposition levels. Potential releases from the containment and ancillary equipment used in the paint removal process were modeled based on different release scenarios ranging from routine operations to complete failure of containment. To estimate the paint removal activities' contribution to long-term exterior dust lead levels (and its related interior component), a stochastic simulation model was developed for each block in the study area.

  8. Measurable Maximal Energy and Minimal Time Interval

    E-Print Network [OSTI]

    Eiman Abou El Dahab; Abdel Nasser Tawfik

    2014-01-14

    The possibility of finding the measurable maximal energy and the minimal time interval is discussed in different quantum aspects. It is found that the linear generalized uncertainty principle (GUP) approach gives a non-physical result. Based on large scale Schwarzshild solution, the quadratic GUP approach is utilized. The calculations are performed at the shortest distance, at which the general relativity is assumed to be a good approximation for the quantum gravity and at larger distances, as well. It is found that both maximal energy and minimal time have the order of the Planck time. Then, the uncertainties in both quantities are accordingly bounded. Some physical insights are addressed. Also, the implications on the physics of early Universe and on quantized mass are outlined. The results are related to the existence of finite cosmological constant and minimum mass (mass quanta).

  9. Vapor cooled current lead for cryogenic electrical equipment

    DOE Patents [OSTI]

    Vansant, James H. (Tracy, CA)

    1983-01-01

    Apparatus and method are provided for conducting electric current to cryogenic electrical equipment devices. A combination of inner and outer tubes together form a plurality of hollow composite tubes housed in a sheath. Top and bottom block mounting means are fitted to hold the composite tubes and are affixed to the ends of the sheath. This combination forms a current lead. The current lead is attached to a cryogenic device housing a fluid coolant which moves through the current lead, cooling the current lead as the fluid travels.

  10. Robert C. Seamans, Jr. Appointed to Lead Nuclear Weapons Program...

    National Nuclear Security Administration (NNSA)

    C. Seamans, Jr. Appointed to Lead Nuclear Weapons Program | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile...

  11. Sandia Energy - Novel Nanoparticle Production Method Could Lead...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Novel Nanoparticle Production Method Could Lead to Better Lights, Lenses, Solar Cells Home Energy Solid-State Lighting Facilities Capabilities CINT News Energy Efficiency News &...

  12. Data, Feedback, & Awareness Lead to Big Energy Savings | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Data, Feedback, & Awareness Lead to Big Energy Savings Fact sheet describes how the Navy Region Southwest Metro San Diego Area (NRSMSD) regional energy management team achieved...

  13. Weerts to lead Physical Sciences and Engineering directorate...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Weerts to lead Physical Sciences and Engineering directorate By Lynn Tefft Hoff * August 10, 2015 Tweet EmailPrint Hendrik (Harry) Joseph Weerts has been named the associate...

  14. Combined Heat and Power System Enables 100% Reliability at Leading...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    buildings on nearly 1,000 acres. Photo courtesy of Thermal Energy Corporation Combined Heat and Power System Enables 100% Reliability at Leading Medical Campus Recovery Act...

  15. A Boring Material "Stretched" Could Lead to an Electronics Revolution...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to APS Science Highlights rss feed A Boring Material "Stretched" Could Lead to an Electronics Revolution SEPTEMBER 30, 2010 Bookmark and Share Predicted effect of biaxial strain...

  16. Paul Langan to lead ORNL's Neutron Sciences Directorate | ornl...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    science activities, which include two leading DOE Office of Science user facilities for neutron scattering analysis: The Spallation Neutron Source (SNS) and the High Flux Isotope...

  17. West Africa Emerges as Leading Region in Africa for Renewable...

    Open Energy Info (EERE)

    West Africa Emerges as Leading Region in Africa for Renewable Energy and Energy Efficiency Home > Groups > Clean and Renewable Energy Dc's picture Submitted by Dc(266) Contributor...

  18. New Director to lead Technology Development and Commercialization...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    New Director to lead Technology Development and Commercialization division April 2, 2015 Tweet EmailPrint Suresh Sunderrajan has been appointed Director of Argonne's Technology...

  19. ELLIPSOMETRY OF SURFACE LAYERS ON LEAD AND LITHIUM

    E-Print Network [OSTI]

    Peters, Richard Dudley

    2011-01-01

    Surface Layers on Lead and Lithium By Richard Dudley Peterssulfuric acid and and lithium to water, Acid concentrationsbeen observed in the reaction of lithium with water vapor. i

  20. GE leads the way in photonics research | GE Global Research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    leads a global team of over 500 scientists and engineers, responsible for advanced technology development in the areas of semiconductor devices and packaging, electronics,...

  1. Testing your home for lead in paint, dust, and soil

    SciTech Connect (OSTI)

    1998-10-01

    This publication is for anyone who is considering having a home or residence tested for lead in paint, dust, or soil by a professional. It explains the technical aspects of lead testing without overwhelming the reader. The first section tells why you would test for lead, the approaches for testing for lead, and what information you will get from each approach. The second section answers specific questions about how paint, soil, and dust sampling are conducted by the professional in your home. Finally, the last section answers other questions about testing, including questions about home test kits and testing of water and ceramics.

  2. NREL Leads Effort to Get Traffic Moving in Right Direction -...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NREL Leads Effort to Get Traffic Moving in Right Direction Connected Traveler project will guide travelers in energy-efficient manner August 17, 2015 The Energy Department's...

  3. Update on Establishing the Feasibility of Lead Slowing Down Spectrosco...

    Office of Scientific and Technical Information (OSTI)

    of Lead Slowing Down Spectroscopy for Direct Measurement of Plutonium in Used Fuel Citation Details In-Document Search Title: Update on Establishing the Feasibility of...

  4. Huizenga leads safety of spent fuel management, radioactive waste...

    National Nuclear Security Administration (NNSA)

    Huizenga leads safety of spent fuel management, radioactive waste management meeting in Vienna | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People...

  5. Measuring time with physical clocks

    E-Print Network [OSTI]

    Esteban Castro-Ruiz; Flaminia Giacomini; ?aslav Brukner

    2015-07-07

    In general relativity, the picture of spacetime assigns an ideal clock to each spacetime point. Being ideal, gravitational effects due to these clocks are ignored and the flow of time according to one clock is not affected by the presence of surrounding clocks. However, if time is defined operationally, as a pointer position of a physical clock that obeys the laws of quantum mechanics and general relativity, such a picture is at most a convenient fiction. We show that the mass-energy equivalence implies gravitational interaction between the clocks, while the superposition of energy eigenstates leads to a non-fixed metric background. Based only on the assumption that both quantum mechanics and general relativity are valid in this situation, we show that the clocks necessarily get entangled through time dilation effect, which eventually leads to a loss of coherence of a single clock. Hence, the time as measured by a single clock is not well-defined. However, the general relativistic notion of time is recovered in the classical limit of clocks.

  6. Time Machine at the LHC

    E-Print Network [OSTI]

    I. Ya. Aref'eva; I. V. Volovich

    2007-10-25

    Recently, black hole and brane production at CERN's Large Hadron Collider (LHC) has been widely discussed. We suggest that there is a possibility to test causality at the LHC. We argue that if the scale of quantum gravity is of the order of few TeVs, proton-proton collisions at the LHC could lead to the formation of time machines (spacetime regions with closed timelike curves) which violate causality. One model for the time machine is a traversable wormhole. We argue that the traversable wormhole production cross section at the LHC is of the same order as the cross section for the black hole production. Traversable wormholes assume violation of the null energy condition (NEC) and an exotic matter similar to the dark energy is required. Decay of the wormholes/time machines and signatures of time machine events at the LHC are discussed.

  7. Calculated in-air leakage spectra and power levels for the ANSI standard minimum accident of concern. Final report

    SciTech Connect (OSTI)

    Lee, B.L. Jr.; Dobelbower, M.C.; Tayloe, R.W. Jr.

    1995-07-01

    This document represents Phase I of a two-phase project. The entire project consists of determining a series of minimum accidents of concern and their associated neutron and photon leakage spectra that may be used to determine Criticality Accident Alarm compliance with ANSI/ANS-8.3. The inadvertent assembly of a critical mass of material presents a multitude of unknown quantities. Depending on the particular process, one can make an educated guess as to fissile material. In a gaseous diffusion cascade, this material is assumed to be uranyl fluoride. However, educated assumptions cannot be readily made for the other variables. Phase I of this project is determining a bounding minimum accident of concern and its associated neutron and photon leakage spectra. To determine the composition of the bounding minimum accident of concern, work was done to determine the effects of geometry, moderation level, and enrichment on the leakage spectra of a critical assembly. The minimum accident of concern is defined as the accident that may be assumed to deliver the equivalent of an absorbed dose in free air of 20 rad at a distance of 2 meters from the reacting material within 60 seconds. To determine this dose, an analyst makes an assumption and choose an appropriate flux to dose response function. The power level required of a critical assembly to constitute a minimum accident of concern depends heavily on the response function chosen. The first step in determining the leakage spectra was to attempt to isolate the effects of geometry, after which all calculations were conducted on critical spheres. The moderation level and enrichment of the spheres were varied and their leakage spectra calculated. These spectra were then multiplied by three different response functions: the Henderson Flux to Dose conversion factors, the ICRU 44 Kerma in Air, and the MCNP Heating Detector. The power level required to produce a minimum accident of concern was then calculated for each combination.

  8. Isotopic generator for bismuth-212 and lead-212 based on radium

    DOE Patents [OSTI]

    Hines, J.J.; Atcher, R.W.; Friedman, A.M.

    1985-01-30

    Disclosed are method and apparatus for providing radionuclides of bismuth-212 and lead-212. Thorium-228 and carrier solution starting material is input to a radiologically contained portion of an isotopic generator system, and radium-224 is separated from thorium-228 which is retained by a strongly basic anion exchange column. The separated radium-224 is transferred to an accessible, strongly acidic cationic exchange column. The cationic column retains the radium-224, and natural radioactive decay generates bismuth-212 and lead-212. The cationic exchange column can also be separated from the contained portion of the system and utilized without the extraordinary safety measures necessary in the contained portion. Furthermore, the cationic exchange column provides over a relatively long time period the short lived lead-212 and bismuth-212 radionuclides which are useful for a variety of medical therapies.

  9. Biosorption of Lead and Nickel by Biomass of Marine Algae

    E-Print Network [OSTI]

    Volesky, Bohumil

    Biosorption of Lead and Nickel by Biomass of Marine Algae Z.R. Holan and B. Volesky" Department 22, 1993 Screening tests of different marine algae biomass types revealed a high passive biosorptive uptake of lead up to 270 mg Pb/g of biomass in some brown marine algae. Members of the order Fucales

  10. Search for spontaneous muon emission from lead nuclei

    E-Print Network [OSTI]

    L. Arrabito; D. Autiero; E. Barbuto; C. Bozza; S. Cecchini; L. Consiglio; M. Cozzi; N. D'Ambrosio; Y. Declais; G. De Lellis; G. De Rosa; M. De Serio; D. Di Ferdinando; A. Di Giovanni; N. Di Marco; L. S. Esposito; G. Giacomelli; M. Giorgini; G. Grella; M. Hauger; M. Ieva; D. B. Ion; I. Janicsko; F. Juget; I. Laktineh; G. Mandrioli; S. Manzoor; A. Margiotta; P. Migliozzi; P. Monacelli; M. T. Muciaccia; L. Patrizii; C. Pistillo; V. Popa; G. Romano; G. Rosa; P. Royole-Degieux; S. Simone; M. Sioli; C. Sirignano; G. Sirri; G. Sorrentino; M. Spurio; V. Tioukov

    2005-08-05

    We describe a possible search for muonic radioactivity from lead nuclei using the base elements ("bricks" composed by lead and nuclear emulsion sheets) of the long-baseline OPERA neutrino experiment. We present the results of a Monte Carlo simulation concerning the expected event topologies and estimates of the background events. Using few bricks, we could reach a good sensitivity level.

  11. Law Update Cover 2,3 No More Spreading Lead

    E-Print Network [OSTI]

    Hutyra, Lucy R.

    Receipt Did You Know? Page 4 Not All Lead Base Paint is a Hazard Calendar Page 5 Upcoming Meetings News Sullivan, Attorney Page Deanna Boufford, Financial Services Page 7 Organized by and for Rental Property Compliance Project (RCCP). The RCCP provides education on federal lead-based paint requirements. He now

  12. Nitrided Metallic Bipolar Plates M.P. Brady (project lead)

    E-Print Network [OSTI]

    Nitrided Metallic Bipolar Plates M.P. Brady (project lead) P. F. Tortorelli Oak Ridge National - $2480 K · ORNL (Lead) · Allegheny Ludlum · Funding for Year 2 · Arizona State University - $2050 K wt.% ­ pre-oxidation key to protective surface nitride formation ­ V segregation into Cr-oxide makes

  13. History of Lead Pollution Recorded in East China Sea Sediments

    E-Print Network [OSTI]

    Huh, Chih-An

    inner-shelf cores were expected to shed light on the source and transport of pollutants associatedHistory of Lead Pollution Recorded in East China Sea Sediments CHIH-AN HUH* and HUNG-YU CHEN concentrations to establish sediment chronologies and unravel the history of lead pollution. The data show

  14. CDC Lead Poisoning Prevention and Treatment Recommendations for Refugee Children

    E-Print Network [OSTI]

    CDC Lead Poisoning Prevention and Treatment Recommendations for Refugee Children 1. Background of elevated blood lead levels is much higher among newly resettled refugee children in the United States than poisoning, regardless of the age of their housing. This occurrence is common among certain refugee

  15. World-leading research advancing the frontiers of technology

    E-Print Network [OSTI]

    Department of Physics World-leading research advancing the frontiers of technology inspiring the Departments of Physics, Chemistry and Electronics, and has world-class facilities for nanoscale fabrication CONTENTS World-leading research in a dynamic environment 4 Teaching excellence 6 Graduation studies 7

  16. Water supplier copes with lead paint removal regs

    SciTech Connect (OSTI)

    Becker, C.E. ); Lovejoy, D.R.; Bryck, J.L.; Rockensies, W.H.

    1993-12-01

    This article examines new paint removal methods that minimize releasing of paints containing lead to the environment and lead free coating systems for tank corrosion protection used in the Village of Freeport in Long Island, New York. The topics of the article include coating failures, removal tools and methods, paint and application methods.

  17. We propose an approach to visualizing the scientific world and its evolution by constructing minimum span-

    E-Print Network [OSTI]

    Chen, Chi-Ming

    of science is that the structure is in general dynamic over time, whereas bibli- ographic coupling is a fixed

  18. Method for fabricating fan-fold shielded electrical leads

    DOE Patents [OSTI]

    Rohatgi, R.R.; Cowan, T.E.

    1994-12-27

    Fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate. 3 figures.

  19. Method for fabricating fan-fold shielded electrical leads

    DOE Patents [OSTI]

    Rohatgi, Rajeev R. (Mountain View, CA); Cowan, Thomas E. (Livermore, CA)

    1994-01-01

    Fan-folded electrical leads made from copper cladded Kapton, for example, with the copper cladding on one side serving as a ground plane and the copper cladding on the other side being etched to form the leads. The Kapton is fan folded with the leads located at the bottom of the fan-folds. Electrical connections are made by partially opening the folds of the fan and soldering, for example, the connections directly to the ground plane and/or the lead. The fan folded arrangement produces a number of advantages, such as electrically shielding the leads from the environment, is totally non-magnetic, and has a very low thermal conductivity, while being easy to fabricate.

  20. CX-EWS: A new process for the electrochemical treatment of the spent lead-acid batteries by obtaining electrolytic lead and elemental sulphur

    SciTech Connect (OSTI)

    Olper, M. [Ecowin S.r.l., Milan (Italy); Morocutti, S. [Engitec Impianti S.p.A., Milan (Italy)

    1995-12-31

    After two years of extensive research a new and innovative modification to the CX-EW process has been exploited. This process, called CX-EWS, avoids completely all the critical aspects of the previous process which affected the cost of the energy, of the chemicals and of the maintenance of the insoluble anodes. All these benefits reflect a saving of about 30% of the operating costs compared to the present traditional production and allow for a total operating costs of less than 6.5 cts/lb. lead (net of raw material cost). With this new technology it is allowed for the first time the treatment in the same plant facilities of both primary lead sulfide concentrate and spent batteries. The paper describes the technical and economical aspect of the new process with a Feasibility study for 150.000 t/y spent battery facility throughput.

  1. A new XRF method for measuring lead in paint

    SciTech Connect (OSTI)

    Grodzins, L.; Parsons, C.; Sackett, D.; Shefsky, S.; Tannian, B.

    1995-12-31

    The traditional field testing method for lead paint is the use of x-ray fluorescence, where the K shell fluorescence x-rays of lead (at 73 and 75 MeV) are measured. Although the K shell method can suffer from substrate effects and hence low sensitivity around the action level of 1 mg/cm{sup 2} of lead, it has been the industry choice because the effects of the overlying paint matrix on the K-shell x-rays are negligible. L shell x-rays of lead, at L{sub {alpha}} = 10.5 keV and L{sub {beta}} = 12.6 keV, provide much greater sensitivity and are free of substrate effects, but corrections for the absorption of the L-shell x-rays by the overlying non-lead paint matrix must be made. Such corrections were thought to be impossible without knowledge of the composition and thickness of the overlying paint matrix. NITON has developed a new method that makes it possible to use L-shell x-rays to accurately and quickly determine the absolute concentration of lead in buried lead paint (in mg/cm{sup 2}) without knowledge of the composition or thickness of the layers overlying the lead. The invention makes use of the fact that the ratio of the mass attenuation coefficients for the L{sub {alpha}} at 10.5 keV to the L{sub {beta}} at 12.6 keV is effectively independent of the elemental composition of paint layers. The new method also gives a measure of the depth of the lead beneath the surface. Theory and confirming experimental data will be presented. The authors will describe the NITON XL, a portable XRF device which uses the invention to give the lead concentration and its depth beneath the surface of paint.

  2. Charged Jets in Minimum Bias p-Pb Collisions at sqrt(s) = 5.02 TeV with ALICE

    E-Print Network [OSTI]

    Rüdiger Haake; for the ALICE collaboration

    2013-10-14

    Highly energetic jets are sensitive probes for the kinematics and the topology of nuclear collisions. Jets are produced in an early stage of the collision from hard-scattered partons, which fragment into a spray of charged and neutral particles. The measurement of jet spectra in p-Pb collisions provides an important way to quantify the effects of cold nuclear matter on jet production, fragmentation and hadronization. This is possible because the hot, dense medium produced in Pb-Pb collisions is not expected to form. Proton-Lead collisions also provide an important constraint for the nuclear parton density functions. The exact evaluation of the background from the underlying event is an important ingredient to correct the measured jet spectra. The system size in p-Pb collisions is much smaller than in Pb-Pb so that the methods for background estimation need to be refined. The analysis reported here is performed on p-Pb data taken at sqrt(s_NN) = 5.02 TeV by the ALICE detector at the LHC in the beginning of 2013. The focus of our analysis lies on the minimum bias charged jet spectra and their comparison to the spectra from pp collisions. For this analysis various estimates for the background and its fluctuations have been tested in p-Pb and PYTHIA simulations.

  3. Lead, mercury, cadmium, chromium, and arsenic levels in eggs, feathers, and tissues of Canada geese of the New Jersey Meadowlands

    SciTech Connect (OSTI)

    Tsipoura, Nellie; Burger, Joanna; Environmental and Occupational Health Sciences Institute, Consortium for Risk Evaluation with Stakeholder Participation, Rutgers University, Piscataway, NJ 08854 ; Newhouse, Michael; Jeitner, Christian; Environmental and Occupational Health Sciences Institute, Consortium for Risk Evaluation with Stakeholder Participation, Rutgers University, Piscataway, NJ 08854 ; Gochfeld, Michael; Environmental and Occupational Medicine. Robert Wood Johnson Medical School, 170 Frelinghuysen Road, Piscataway, NJ 08854 ; Mizrahi, David

    2011-08-15

    The New Jersey Meadowlands are located within the heavily urbanized New York/New Jersey Harbor Estuary and have been subject to contamination due to effluent and runoff from industry, traffic, and homes along the Hackensack River and nearby waterways. These extensive wetlands, though heavily impacted by development and pollution, support a wide array of bird and other wildlife species. Persistent contaminants may pose threats to birds in these habitats, affecting reproduction, egg hatchability, nestling survival, and neurobehavioral development. Metals of concern in the Meadowlands include arsenic, cadmium, chromium, lead, and mercury. These metals were analyzed in eggs, feathers, muscle, and liver of Canada geese (Branta canadensis) breeding in four wetland sites. We sampled geese collected during control culling (n=26) and collected eggs from goose nests (n=34). Levels of arsenic were below the minimum quantification level (MQL) in most samples, and cadmium and mercury were low in all tissues sampled. Chromium levels were high in feather samples. Mercury levels in eggs of Canada geese, an almost exclusively herbivorous species, were lower (mean {+-}SE 4.29{+-}0.30 {mu}g/g wet weight) than in eggs of omnivorous mallards (Anas platyrhynchos), and insectivorous red-winged blackbirds (Agelaius phoeniceus) and marsh wrens (Cistothorus palustris) from the Meadowlands, consistent with trophic level differences. However, lead levels were higher in the goose eggs (161{+-}36.7 ng/g) than in the other species. Geese also had higher levels of lead in feathers (1910{+-}386 ng/g) than those seen in Meadowlands passerines. By contrast, muscle and liver lead levels were within the range reported in waterfowl elsewhere, possibly a reflection of metal sequestration in eggs and feathers. Elevated lead levels may be the result of sediment ingestion or ingestion of lead shot and sinkers. Finally, lead levels in goose liver (249{+-}44.7 ng/g) and eggs (161{+-}36.7 ng/g) may pose a risk if consumed frequently by humans. Mill Creek, the site with the most documented prior contamination, had significantly elevated cadmium, chromium, mercury, and lead in goose tissues. - Highlights: {yields} The NJ Meadowlands include extensive wetlands in the urban NYC metropolitan area. {yields} We analyzed eggs, feathers, muscle, and liver of Canada geese at 4 Meadowlands sites. {yields} As, Cd, and Hg were low in all tissues sampled, while Cr was high in feathers. {yields} Pb was higher in goose eggs and feathers than in other Meadowlands bird species. {yields} Pb in muscle and liver was lower and within the range seen in waterfowl elsewhere.

  4. UGE Scheduler Cycle Time

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    UGE Scheduler Cycle Time UGE Scheduler Cycle Time Genepool Cycle Time Genepool Daily Genepool Weekly Phoebe Cycle Time Phoebe Daily Phoebe Weekly What is the Scheduler Cycle? The...

  5. Lead poisoning of waterfowl is neither a new disease nor a subject without controversy. The use of lead shot for water-

    E-Print Network [OSTI]

    Lead 317 Chapter 43 Lead Synonym Plumbism Lead poisoning of waterfowl is neither a new disease nor of lead shot for nonwaterfowl hunt- ing. The first documented reports within the United States of lead-poisoned deposited in environments where birds feed assure that lead poisoning will remain a common bird disease

  6. Minimum Analytical Chemistry Requirements for Pit Manufacturing at Los Alamos National Laboratory

    SciTech Connect (OSTI)

    Moy, Ming M.; Leasure, Craig S.

    1998-08-01

    Analytical chemistry is one of several capabilities necessary for executing the Stockpile Stewardship and Management Program at Los Alamos National Laboratory (LANL). Analytical chemistry capabilities reside in the Chemistry Metallurgy Research (CMR) Facility and Plutonium Facility (TA-55). These analytical capabilities support plutonium recovery operations, plutonium metallurgy, and waste management. Analytical chemistry capabilities at both nuclear facilities are currently being configured to support pit manufacturing. This document summarizes the minimum analytical chemistry capabilities required to sustain pit manufacturing at LANL. By the year 2004, approximately $16 million will be required to procure analytical instrumentation to support pit manufacturing. In addition, $8.5 million will be required to procure glovebox enclosures. An estimated 50% increase in costs has been included for installation of analytical instruments and glovebox enclosures. However, no general and administrative (G and A) taxes have been included. If an additional 42.5/0 G and A tax were to be incurred, approximately $35 million would be required over the next five years to prepare analytical chemistry to support a 50-pit-per-year manufacturing capability by the year 2004.

  7. Quiescent and Eruptive Prominences at Solar Minimum: A Statistical Study via an Automated Tracking System

    E-Print Network [OSTI]

    Loboda, I P

    2015-01-01

    We employ an automated detection algorithm to perform a global study of solar prominence characteristics. We process four months of TESIS observations in the He II 304 A line taken close to the solar minimum of 2008-2009 and focus mainly on quiescent and quiescent-eruptive prominences. We detect a total of 389 individual features ranging from 25x25 to 150x500 Mm in size and obtain distributions of many their spatial characteristics, such as latitudinal position, height, size and shape. To study their dynamics, we classify prominences as either stable or eruptive and calculate their average centroid velocities, which are found to be rarely exceeding 3 km/s. Besides, we give rough estimates of mass and gravitational energy for every detected prominence and use these values to evaluate the total mass and gravitational energy of all simultaneously existing prominences (10e12-10e14 kg and 10e29-10e31 erg, respectively). Finally, we investigate the form of the gravitational energy spectrum of prominences and derive...

  8. Use of finite volume radiation for predicting the Knudsen minimum in 2D channel flow

    SciTech Connect (OSTI)

    Malhotra, Chetan P.; Mahajan, Roop L.

    2014-12-09

    In an earlier paper we employed an analogy between surface-to-surface radiation and free-molecular flow to model Knudsen flow through tubes and onto planes. In the current paper we extend the analogy between thermal radiation and molecular flow to model the flow of a gas in a 2D channel across all regimes of rarefaction. To accomplish this, we break down the problem of gaseous flow into three sub-problems (self-diffusion, mass-motion and generation of pressure gradient) and use the finite volume method for modeling radiation through participating media to model the transport in each sub-problem as a radiation problem. We first model molecular self-diffusion in the stationary gas by modeling the transport of the molecular number density through the gas starting from the analytical asymptote for free-molecular flow to the kinetic theory limit of gaseous self-diffusion. We then model the transport of momentum through the gas at unit pressure gradient to predict Poiseuille flow and slip flow in the 2D gas. Lastly, we predict the generation of pressure gradient within the gas due to molecular collisions by modeling the transport of the forces generated due to collisions per unit volume of gas. We then proceed to combine the three radiation problems to predict flow of the gas over the entire Knudsen number regime from free-molecular to transition to continuum flow and successfully capture the Knudsen minimum at Kn ? 1.

  9. Approaching the Minimum Thermal Conductivity in Rhenium-Substituted Higher Manganese Silicides

    SciTech Connect (OSTI)

    Chen, Xi [University of Texas at Austin] [University of Texas at Austin; Girard, S. N. [University of Wisconsin, Madison] [University of Wisconsin, Madison; Meng, F. [University of Wisconsin, Madison] [University of Wisconsin, Madison; Lara-Curzio, Edgar [ORNL] [ORNL; Jin, S [University of Wisconsin, Madison] [University of Wisconsin, Madison; Goodenough, J. B. [University of Texas at Austin] [University of Texas at Austin; Zhou, J. S. [University of Texas at Austin] [University of Texas at Austin; Shi, L [University of Texas at Austin] [University of Texas at Austin

    2014-01-01

    Higher manganese silicides (HMS) made of earth-abundant and non-toxic elements are regarded as promising p-type thermoelectric materials because their complex crystal structure results in low lattice thermal conductivity. It is shown here that the already low thermal conductivity of HMS can be reduced further to approach the minimum thermal conductivity via partial substitu- tion of Mn with heavier rhenium (Re) to increase point defect scattering. The solubility limit of Re in the obtained RexMn1 xSi1.8 is determined to be about x = 0.18. Elemental inhomogeneity and the formation of ReSi1.75 inclusions with 50 200 nm size are found within the HMS matrix. It is found that the power factor does not change markedly at low Re content of x 0.04 before it drops considerably at higher Re contents. Compared to pure HMS, the reduced lattice thermal conductivity in RexMn1 xSi1.8 results in a 25% increase of the peak figure of merit ZT to reach 0.57 0.08 at 800 K for x = 0.04. The suppressed thermal conductivity in the pure RexMn1 xSi1.8 can enable further investigations of the ZT limit of this system by exploring different impurity doping strategies to optimize the carrier concentration and power factor.

  10. Time and Labor Manual -Time Keepers -LSUSH

    E-Print Network [OSTI]

    Time and Labor Manual - Time Keepers - LSUSH Version Date: July 2012 #12;COPYRIGHT & TRADEMARKS create a risk of personal injury. If you use this software in dangerous applications, then you shall Guide Time and Labor Manual - Time Keepers - LSUSH Page iii Table of Contents Time and Labor Manual

  11. Time Commitments Where Does Your Time Go

    E-Print Network [OSTI]

    Kunkle, Tom

    Time Commitments Where Does Your Time Go Everyone starts the week with the same number of hours. So, why does your time go so fast? Let's find out! Number of hours of sleep each night ____ x 7 preparation/clean-up time) ____ x 7 = ____ Travel time to and from campus ___ x __ = ____ Number of hours per

  12. Electric Power Network Security Analysis via Minimum Cut Relaxation Kin Cheong Sou, Henrik Sandberg and Karl Henrik Johansson

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    ) and ma directed arcs (i.e., transmission lines) on which power flows. The flow can The authorsElectric Power Network Security Analysis via Minimum Cut Relaxation Kin Cheong Sou, Henrik Sandberg the security of power transmission networks is presented. In order to strategically allocate protection devices

  13. 3172 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 8, NO. 6, JUNE 2009 On Multicast Beamforming for Minimum Outage

    E-Print Network [OSTI]

    Sidiropoulos, Nikolaos D.

    Beamforming for Minimum Outage Vassilis Ntranos, Nicholas D. Sidiropoulos, and Leandros Tassiulas Abstract--The multicast beamforming problem is considered from the viewpoint of minimizing outage probability subject (locations) and variances (spreads). It is shown that minimizing outage probability subject to a transmit

  14. JOURNAL OF LATEX CLASS FILES, VOL. 6, NO. 1, JANUARY 2007 1 An Approximation Algorithm for the Minimum

    E-Print Network [OSTI]

    Chen, Xin

    thus formulated in the framework of genome rearrangement. As an important one among them, the minimum breakpoint linearization (MBL) problem is to find the total order of a partially-ordered genome that minimizes its breakpoint distance to a reference genome whose genes are already totally ordered

  15. Task Allocation for Minimum System Power in a Homogenous Multi-core Processor Yang Ge, Qinru Qiu

    E-Print Network [OSTI]

    Qiu, Qinru

    . At micro- architecture level, increased power density has set up a "Power Wall" which blocks the microTask Allocation for Minimum System Power in a Homogenous Multi-core Processor Yang Ge, Qinru Qiu power consumption of a homogenous multi-core processor with a main focus on its impact on the leakage

  16. An Association of Independent Blue Cross and Blue Shield Plans This health plan meets Minimum Creditable Coverage Standards for

    E-Print Network [OSTI]

    Aalberts, Daniel P.

    An Association of Independent Blue Cross and Blue Shield Plans This health plan meets Minimum, as part of the Massachusetts Health Care Reform Law. HMO Blue New EnglandSM Summary of Benefits Williams College #12;Your Care Your Primary Care Provider. When you enroll in HMO Blue New England, you must choose

  17. Survey of Quiescent Filament Channels at the Current Solar Minimum Yingna Su, Adriaan van Ballegooijen, Leon Golub

    E-Print Network [OSTI]

    Su, Yingna

    Survey of Quiescent Filament Channels at the Current Solar Minimum Yingna Su, Adriaan van Ballegooijen, Leon Golub Harvard-Smithsonian Center for Astrophysics Abstract Type I Filament Channels Type II Filament Channels Summary We present preliminary results of an investigation on filament channels

  18. IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 54, NO. 6, JUNE 2006 2155 A Minimum Squared-Error Framework

    E-Print Network [OSTI]

    Eldar, Yonina

    IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 54, NO. 6, JUNE 2006 2155 A Minimum Squared processing entails representing a signal by a set of coefficients and relies on the existence of methods kernel. In practice, however, the input signal is never perfectly bandlimited, and the sampling process

  19. Doctoral Program in Biomedical Engineering Admission to this program is contingent upon admission to the Graduate School. The minimum

    E-Print Network [OSTI]

    Berdichevsky, Victor

    Doctoral Program in Biomedical Engineering Admission to this program is contingent upon admission to the Graduate School. The minimum requirements for admission into the Doctoral Program in Biomedical Engineering in Biomedical Engineering, or other closely related field from an accredited institution. · A GPA of at least 3

  20. A Minimum Free Energy Reaction Path for the E2 Reaction between Fluoro Ethane and a Fluoride Ion

    E-Print Network [OSTI]

    Nielsen, Steven O.

    A Minimum Free Energy Reaction Path for the E2 Reaction between Fluoro Ethane and a Fluoride Ion, such as the mechanism and the free-energy profile, remains an important challenge not only for enzyme catalysis1 of the reaction free-energy profile is very cumbersome with constrained molecular dynamics (MD) and umbrella

  1. Anaerobic microbial dissolution of lead and production of organic acids

    DOE Patents [OSTI]

    Francis, A.J.; Dodge, C.; Chendrayan, K.; Quinby, H.L.

    1987-04-16

    The present invention related to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rat of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 ..mu..moles of lead as lead oxide was 0.042 ..mu..moles m1/sup /-/1/ hr/sup /-/1/. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of the strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids. 4 figs., 3 tabs.

  2. Anaerobic microbial dissolution of lead and production of organic acids

    DOE Patents [OSTI]

    Francis, Arokiasamy J. (Middle Island, NY); Dodge, Cleveland (Wading River, NY); Chendrayan, Krishnachetty (Coimbatore Tamil Nadu, IN); Quinby, Helen L. (Cambridge, MD)

    1988-01-01

    The present invention relates to an anaerobic bacterial culture of Clostridium sp. ATCC No. 53464 which solubilizes lead oxide under anaerobic conditions in coal and industrial wastes and therefore presents a method of removing lead from such wastes before they are dumped into the environment. The rate of lead dissolution during logarithmic growth of the bacteria in 40 ml medium containing 3.32 .mu.moles of lead as lead oxide was 0.042 .mu.moles ml.sup.-1 hr.sup.-1. Dissolution of lead oxide by the bacterial isolate is due to the production of metabolites and acidity in the culture medium. The major metabolites are acetic, butyric and lactic acid. Clostridium sp. ATCC No. 53464 can be used in the recovery of strategic metals from ores and wastes and also for the production of lactic acid for commercial purposes. The process yields large quantities of lactic acid as well as lead complexed in a stable form with said acids.

  3. Numerical Model for Conduction-Cooled Current Lead Heat Loads

    SciTech Connect (OSTI)

    White, M.J.; Wang, X.L.; Brueck, H.D.; /DESY

    2011-06-10

    Current leads are utilized to deliver electrical power from a room temperature junction mounted on the vacuum vessel to a superconducting magnet located within the vacuum space of a cryostat. There are many types of current leads used at laboratories throughout the world; however, conduction-cooled current leads are often chosen for their simplicity and reliability. Conduction-cooled leads have the advantage of using common materials, have no superconducting/normal state transition, and have no boil-off vapor to collect. This paper presents a numerical model for conduction-cooled current lead heat loads. This model takes into account varying material and fluid thermal properties, varying thicknesses along the length of the lead, heat transfer in the circumferential and longitudinal directions, electrical power dissipation, and the effect of thermal intercepts. The model is validated by comparing the numerical model results to ideal cases where analytical equations are valid. In addition, the XFEL (X-Ray Free Electron Laser) prototype current leads are modeled and compared to the experimental results from testing at DESY's XFEL Magnet Test Stand (XMTS) and Cryomodule Test Bench (CMTB).

  4. How to implement a gasoline pool lead phase-down

    SciTech Connect (OSTI)

    Al-Mutaz, I.S. [King Saud Univ., Riyadh (Saudi Arabia)

    1996-02-01

    Some operational changes can be made for immediate reduction of lead concentration of gasoline that require no capital investment. For a further lead reduction, installing new refinery units and/or modifications to existing ones are required. The production of unleaded gasoline in the Riyadh refinery required improvement of the clear research octane number (RON) of light naphtha, light isomerate and reformate. However, only a once-through isomerization unit is needed if MTBE blending is planned. The paper describes how the Riyadh refinery in Saudi Arabia phased lead from their gasoline production.

  5. Zinc halogen battery electrolyte composition with lead additive

    DOE Patents [OSTI]

    Henriksen, Gary L. (Troy, MI)

    1981-01-01

    This disclosure relates to a zinc halogen battery electrolyte composition containing an additive providing improved zinc-on-zinc recyclability. The improved electrolyte composition involves the use of a lead additive to inhibit undesirable irregular plating and reduce nodular or dendritic growth on the electrode surface. The lead-containing electrolyte composition of the present invention appears to influence not only the morphology of the base plate zinc, but also the morphology of the zinc-on-zinc replate. In addition, such lead-containing electrolyte compositions appear to reduce hydrogen formation.

  6. Surface dust wipes are the best predictors of blood leads in young children with elevated blood lead levels

    SciTech Connect (OSTI)

    Gulson, Brian, E-mail: brian.gulson@mq.edu.au [Graduate School of the Environment, Macquarie University, North Ryde NSW 2109 (Australia) [Graduate School of the Environment, Macquarie University, North Ryde NSW 2109 (Australia); CSIRO Earth Science and Resource Engineering, North Ryde NSW 2113 (Australia); Anderson, Phil [Information and Statistics Group, Australian Institute of Health and Welfare, Canberra ACT 2601 (Australia) [Information and Statistics Group, Australian Institute of Health and Welfare, Canberra ACT 2601 (Australia); Faculty of Health, University of Canberra, Canberra ACT 2601 (Australia); Taylor, Alan [Department of Psychology, Macquarie University, Sydney NSW 2109 (Australia)] [Department of Psychology, Macquarie University, Sydney NSW 2109 (Australia)

    2013-10-15

    Background: As part of the only national survey of lead in Australian children, which was undertaken in 1996, lead isotopic and lead concentration measurements were obtained from children from 24 dwellings whose blood lead levels were ?15 µg/dL in an attempt to determine the source(s) of their elevated blood lead. Comparisons were made with data for six children with lower blood lead levels (<10 µg/dL). Methods: Thermal ionisation and isotope dilution mass spectrometry were used to determine high precision lead isotopic ratios ({sup 208}Pb/{sup 206}Pb, {sup 207}Pb/{sup 206}Pb and {sup 206}Pb/{sup 204}Pb) and lead concentrations in blood, dust from floor wipes, soil, drinking water and paint (where available). Evaluation of associations between blood and the environmental samples was based on the analysis of individual cases, and Pearson correlations and multiple regression analyses based on the whole dataset. Results and discussion: The correlations showed an association for isotopic ratios in blood and wipes (r=0.52, 95% CI 0.19–0.74), blood and soil (r=0.33, 95% CI ?0.05–0.62), and blood and paint (r=0.56, 95% CI 0.09–0.83). The regression analyses indicated that the only statistically significant relationship for blood isotopic ratios was with dust wipes (B=0.65, 95% CI 0.35–0.95); there were no significant associations for lead concentrations in blood and environmental samples. There is a strong isotopic correlation of soils and house dust (r=0.53, 95% CI 0.20–0.75) indicative of a common source(s) for lead in soil and house dust. In contrast, as with the regression analyses, no such association is present for bulk lead concentrations (r=?0.003, 95% CI ?0.37–0.36), the most common approach employed in source investigations. In evaluation of the isotopic results on a case by case basis, the strongest associations were for dust wipes and blood. -- Highlights: • Children with elevated blood lead ?15 µg/dL compared with a group with <10 µg/dL. • High precision lead isotopic ratios in blood, house dust wipes, soil, water, paint. • Associations for isotopic measures of blood and dust, blood and soil, blood and paint. • Regressions gave significance for isotopic measures of blood/dust and dust/soil.

  7. Get the LEAD Out!Most lead-containing autoclave tape has stripes running across at an angle ( / / / / / / ); if it has very faint text (the word "autoclaved"), it most likely is a lead-free alternative.

    E-Print Network [OSTI]

    Ford, James

    Get the LEAD Out!Most lead-containing autoclave tape has stripes running across at an angle ( / / / / / / ); if it has very faint text (the word "autoclaved"), it most likely is a lead-free alternative. ADDITIONAL Programs Office (650.723.0110) REPLACE lead-containing rolls of auto- clave tape with a non-lead containing

  8. Titanha Alloy Wwfacturbi: L'ivinien Hatioml Lead Camparw Box...

    Office of Legacy Management (LM)

    Llcm No. c- 3u3 xmAtdr cktebor 24, lp55 Titanha Alloy Wwfacturbi: L'ivinien Hatioml Lead Camparw Box C, Widgr, Station Uagara F&lb, New York Attention; &. steprmn F, Ijrbw...

  9. Mechanisms of lead transport in two intestinal epithelial cell lines 

    E-Print Network [OSTI]

    Dekaney, Christopher Matthew

    1996-01-01

    Toxic effects of lead (Pb) have been recognized for as long as the heavy metal has been used in society; however, Pb toxicity is still a problem today in humans and animals. The primary targets of Pb toxicity are the ...

  10. WPN 08-6: Interim Lead-Safe Weatherization Guidance

    Broader source: Energy.gov [DOE]

    To provide additional guidance for an LSW component of a health and safety plan. This guidance builds on the foundation provided in WPN 02-6, Weatherization Activities and Federal Lead Based Paint Regulations.

  11. Direct printing of lead zirconate titanate thin films

    E-Print Network [OSTI]

    Bathurst, Stephen, 1980-

    2008-01-01

    Thus far, use of lead zirconate titanate (PZT) in MEMS has been limited due to the lack of process compatibility with existing MEMS manufacturing techniques. Direct printing of thin films eliminates the need for photolithographic ...

  12. Leading change management projects in international cross-cultural settings

    E-Print Network [OSTI]

    Repoux, Charles

    2014-01-01

    In an increasingly complex world for Multinational Companies, it is difficult for managers to keep a firm grasp over the global projects they are tasked to implement. Many of them lead teams operating across country borders, ...

  13. Does Partisan Polarization Lead to Policy Gridlock in California?

    E-Print Network [OSTI]

    Kousser, Thad B

    2010-01-01

    10.2202/1944-4370.1071 Kousser: Does Partisan Polarization10.2202/1944-4370.1071 Kousser: Does Partisan PolarizationPolicy Volume 2, Issue 2 Does Partisan Polarization Lead to

  14. DOE Leading by Example with Green Button, American Energy Data...

    Open Energy Info (EERE)

    DOE Leading by Example with Green Button, American Energy Data Challenge contest 4 Home > Groups > OpenEI Community Central NickL's picture Submitted by NickL(127) Contributor 5...

  15. Leading Edge Spinning the Web of Cell Fate

    E-Print Network [OSTI]

    Corces, Victor G.

    Leading Edge Minireview Spinning the Web of Cell Fate Kevin Van Bortle1 and Victor G. Corces1,* 1 involved in spinning the web of cell fate. Chromatin at the Nuclear Lamina The nuclear lamina is a thin

  16. Method and apparatus for diagnosis of lead toxicity

    DOE Patents [OSTI]

    Rosen, John F. (Riverside, CT); Slatkin, Daniel N. (Bayside, NY); Wielopolski, Lucian (Shirley, NY)

    1989-01-01

    Improved methods and apparatus for in vivo measurement of the skeletal lead burden of a patient and for diagnosis of lead toxicity are disclosed. The apparatus comprises an x-ray tube emitting soft low energy x-rays from a silver anode, a polarizer for polarizing the emitted x-rays, and a detector for detecting photons fluoresced from atoms in the patient's tibia upon irradiation by the polarized x-rays. The fluoresced photons are spectrally analyzed to determine their energy distribution. Peaks indicating the presence of lead are identified if the patient has relatively high bone lead content. The data may be compared to data recorded with respect to a similar test performed on patients having also had the conventional EDTA chelation tests performed thereon in order to correlate the test results with respect to a particular patient to the conventionally accepted EDTA chelation test.

  17. Eliot Feibush leads new Princeton consortium to visualize Big...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Eliot Feibush leads new Princeton consortium to visualize Big Data By John Greenwald April 22, 2015 Tweet Widget Google Plus One Share on Facebook Eliot Feibush (Photo by Elle...

  18. Lead IT Specialist (Systems Analysis/Systems Administration)

    Broader source: Energy.gov [DOE]

    The incumbent in this position will serve as a Lead IT Specialist (Systems Analysis/Systems Administration) in the Data Center Services organization of Information Technology. The Data Center...

  19. Electroluminescence from Organometallic Lead Halide Perovskite - Conjugated Polymer Diodes

    E-Print Network [OSTI]

    Sadhanala, Aditya; Kumar, Abhishek; Pathak, Sandeep; Rao, Akshay; Steiner, Ullrich; Greenham, Neil C.; Snaith, Henry J.; Friend, Richard H.

    2015-02-19

    Organometallic lead perovskite-based solar cells can be converted to light-emitting diodes by engineering the current density. Diodes are fabricated with adjacent perovskite and conjugated polymer layers using orthogonal solvents. Under forward bias...

  20. Cornell dots research collaboration leads to $10M cancer center...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cornell dots research collaboration leads to 10M cancer center September 24th, 2015 ProvidedWiesner Lab A rendering of the molecular structure of a Cornell dot, which is...